Answer:
Monthly sales = $15000
Step-by-step explanation:
Let x be the monthly sale.
Given:
The monthly salary of a show room attendant is the sum of a fixed salary of $600 plus 8% of all monthly sales.
8% of monthly sale = [tex]\frac{8}{100}\times mothly\ sale[/tex]
8% of monthly sale = [tex]\frac{8}{100}\times x[/tex]
So, the monthly salary of attendant is.
[tex]Monthly\ salary = 600+8\ percent \ of\ monthly\ sales[/tex]
[tex]Monthly\ salary = 600+\frac{8}{100}\times x[/tex]
Monthly salary is given.
[tex]1800 = 600+\frac{8}{100}\times x[/tex]
[tex]1800 - 600 = \frac{8}{100}\times x[/tex]
[tex]1200 = \frac{8}{100}\times x[/tex]
[tex]x=\frac{1200\times 100}{8}[/tex]
[tex]x=\frac{120000}{8}[/tex]
[tex]x=15000[/tex]
Therefore, the monthly sale is $15000
Over the past month, a hairstylist has had 56 female clients and 24 male clients. What is the ratio of male clients to female clients for this hairstylist?
A.) 3:7
B.) 3:10
C.) 7:10
D.) 7:3
Answer:
D.) 7:3
Step-by-step explanation:
First, find the LCM of the numbers, which is 8.
Then divide each number by 8
56÷8=7 24÷8= 3
Then, put them in a ratio
7:3
Answer:
A
Step-by-step explanation:
Right now, our ratio of male to female is 24:56. We need to reduce this, kind of like how you would reduce a fraction. 24÷8=3 and 56÷8=7, so our new ratio is 3:7.
The length of a rectangle envelope is 2 1/2 times its width. A plastic band surrounds the front and back of the envelope to secure it as shown in the picture. The plastic band is 39 3/8 inches long. Find the length and width of the envelope.
Answer:
Length of the envelope = 14
Width of the envelope = 5.6
Step-by-step explanation:
Let the width of the rectangle be x
Then the length of the rectangle will be [tex]2\frac{1}{2} \times x[/tex]
Also the length of the plastic band to cover the front and back of the envolpe = [tex]39\frac{3}{8}[/tex]
To cover one side th band required is
=>[tex]\frac{39\frac{3}{8}}{2}[/tex]
=>[tex]\frac{\frac{315}{8}}{2}[/tex]
=>[tex]\frac{\frac{315}{8}}{2}[/tex]
=>[tex]{\frac{315}{16}[/tex]
=>39.4
We know that the perimeter of the rectangle is
=> 2( L + B) = [tex]{\frac{39.4}{2}[/tex]
=> 2( [tex]2\frac{1}{2} \times x + x[/tex]) = 19.7
=> 2( [tex]\frac{7}{2}x) = 19.7 [/tex]
=> [tex]3.5x = 19.7 [/tex]
=> [tex] x = \frac{19.7}{3.5} [/tex]
=> [tex]x = 5.6[/tex]
Now length of the envelope =
=> [tex]2\frac{1}{2} \times x [/tex]
=> [tex] 2.5 \times 5.6 [/tex]
=> 14
The problem involves setting up a relationship equation using the width and length of a rectangle and solving the equation to find the width and length. The length of the plastic band is given, which helps in creating the equation.
Explanation:In this problem, the rectangular envelope has its length, which is 2 1/2 times the width. There is a plastic band that wraps around the envelope and it is given that the total length of this plastic band is 39 3/8 inches. Thus, the length of the plastic band is equal to twice the length of the envelope plus twice the width of the envelope.
Let us denote the width of the envelope by w. Therefore, the length of the envelope is 2.5w. Setting up an equation using this information, we have: 2*(2.5w) + 2w = 39 3/8. Simplifying this equation, we get: 5w + 2w = 39 3/8, 7w = 39 3/8. To find the width, we can divide both sides of the equation by 7, yielding w = 39 3/8 / 7.
Having calculated the width, the length is simply 2.5 times this value. Therefore, we have found both the width and length of the rectangle envelope.
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Nadya has 36 blueberries and 45 raspberries that she will be putting into cups of yogurt to make after-school snacks. She wants to put an equal number of blueberries and an equal number of raspberries into each cup. She uses all the berries.
Answer: Each cup has 4 blueberries and 5 raspberries.
Step-by-step explanation:
Since we have given that
Number of blueberries = 36
Number of raspberries = 45
We need to find the number of each type if she wants to put an equal number of blueberries and an equal number of raspberries into each cup.
So, H.C.F. of 36 and 45 = 9
So, Number of blueberries would be
[tex]\dfrac{36}{9}=4[/tex]
Number of raspberries would be
[tex]\dfrac{45}[9}=5[/tex]
Hence, each cup has 4 blueberries and 5 raspberries.
Angel and Jayden were at track practice. The track is two-fifth kilometers around. Angel ran 1 lap in 2 minutes. Jayden ran 3 laps in 5 minutes. How far does Jayden run in one minute?
Jayden ran [tex]\frac{6}{25}[/tex] of a kilometers in one minute
Solution:
Given that Angel and Jayden were at track practice
The track is two-fifth kilometers around
[tex]\text{ track length } = \frac{2}{5} \text{ kilometers}[/tex]
Angel ran 1 lap in 2 minutes
Jayden ran 3 laps in 5 minutes
To find: distance ran by Jayden in 1 minute
3 laps were run by Jayden in 5 minutes
3 laps = 5 minutes
"x" laps = 1 minute
Therefore laps run by Jayden in one minute is:
On cross multiplication we get,
5x = 3
[tex]x = \frac{3}{5}[/tex]
Therefore Jayden ran [tex]\frac{3}{5}[/tex] laps in 1 minute
Distance covered is:
Total track length = [tex]\frac{2}{5} \text{ km}[/tex]
Distance ran in 1 minute = [tex]\frac{3}{5} \times \frac{2}{5} = \frac{6}{25}[/tex]
Thus Jayden ran [tex]\frac{6}{25}[/tex] of a kilometers in one minute
Evaluate 6x + 3y - 4, if x = 20 and y= 2.
O D.
8
Answer:
122
Step-by-step explanation:
6x+3y-4=6(20)+3(2)-4=120+6-4=126-4=122
y = -x + 8
y= 5/2x - 6
Plot two lines by clicking the graph.
Click a line to delete it.
Answer:
Step-by-step explanation:
Amy is cutting a triangle shaped baseball pennant banner out of felt. She starts by cutting a base 6 inches long and two angles that each measures 75°. What will the third angle measure?
The third angle will be: 30°
Step-by-step explanation:
Amy is cutting a triangle so we know that the sum of interior angles of a triangle is 180 degrees
She has already cut two angles of 75 degrees, which means she has cut a total of 150 degrees
So,
Let x be the third angle then the sum of all angles will be: 150+x
So,
[tex]150+x = 180\\x = 180-150\\x = 30[/tex]
Hence,
The third angle will be: 30°
Keywords: Angles, triangle
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Answer:
30*
Step-by-step explanation:
The variable X varies directly with Z the constant variation is -6 write an equation of a direct variation modeling the situation
Answer:
x = - 6z
Step-by-step explanation:
The equation of quantities in direct variation is
y = kx ← k is the constant of variation
Here k = - 6, thus
x = - 6z ← equation of variation
Solve the system of equations using the substitution method.
4x + 5y = 7
y= 3x + 9
Answer:
x = -2
y = 3
Step-by-step explanation:
Since y = 3x +9, substitute this value in the first eq.
4x + 5(3x+9) = 7 ===> 4x + 15x + 45 = 7 ===> 19x = 7-45 ==> 19x = -38 ===>
===> x -38/19 ===> x = -2
Replace this value in the second eq.
y = 3(-2) + 9 ===> y = -6 + 9 ===> y = 3
Solve for x.
4x =
3
8
Answer:
Step-by-step explanation:
4x = 38
x= 38/ 4
x = 9 1/2
Anna is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Anna will earn $30 every time one of her songs is played in a commercial and she will earn $80 every time one of her songs is played in a movie. Anna's songs were played on 3 more commercials than movies, and her total earnings on the royalties from all commercials and movies was $640. Write a system of equations that could be used to determine the number of commercials and the number of movies on which Anna's songs were played. Define the variables that you use to write the system.
x=y+3 and 30x+80y=640 is the system of equations for given statement where x represents the number of commercials and y represent the number of movies on which Anna's songs were played.
Step-by-step explanation:
Given,
Earning for song played in commercial one time= $30
Earning for song played in movie one time = $80
Let,
x represent the number of commercials Anna's song played.
y represent the number of movies Anna's song played.
According to given statement;
Anna's songs were played on 3 more commercials than movies
x=y+3
her total earnings on the royalties from all commercials and movies was $640.
30x+80y=640
x=y+3 and 30x+80y=640 is the system of equations for given statement where x represents the number of commercials and y represent the number of movies on which Anna's songs were played.
Keywords: linear equation, substitution method
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Final answer:
To solve the question, two variables are defined: c for commercials and m for movies. The system of equations is $30c + $80m = $640 and c = m + 3, representing Anna's royalties from commercials and movies.
Explanation:
The student's question involves creating a system of equations to determine the number of commercials and movies on which Anna, a songwriter who collects royalties, had her songs played. We are given that Anna earns $30 from each commercial and $80 from each movie her songs are played in. It is also known that her songs were played in 3 more commercials than movies, and she earned a total of $640. To formulate the system of equations, we introduce two variables: let c represent the number of commercials and m represent the number of movies.
The first equation represents the total earnings based on the number of plays:
$30c + $80m = $640.
The second equation represents the relationship between the number of commercials and movies:
c = m + 3.
Combining these two equations gives us a system that can be solved to find the values of c and m.
By substituting the second equation into the first equation, we can create a system of equations:
30(M + 3) + 80M = 640
30M + 90 + 80M = 640
110M + 90 = 640
110M = 550
M = 5
Now that we have found the number of movies (M = 5), we can substitute this value back into the equation C = M + 3 to find the number of commercials:
C = 5 + 3
C = 8
HELP HELP HELP HELP HELP HELP
Answer:
Area of parallelogram is equal to the product of base and height, the area is the product of [tex]\pi r[/tex] and r, or [tex]\pi r^{2}[/tex].
Step-by-step explanation:
We are finding the area of a circle by an alternative method.
What we do is split the circle into multiple sectors and then arrange them in the form of a parallelogram and find the area of this parallelogram.
Area of parallelogram = base[tex]\times height[/tex]
Hence area is the product of base and height.
Base = [tex]\pi r[/tex]
Height = r
Area is the product of [tex]\pi r[/tex] and r = [tex]\pi r^{2}[/tex]
If 27 of every 48 residents of a small town are Male, and the total population of the town is 17,808,how many of the residents are male?
Using the quadratic formula to solve 2
4x - 7. what are the values of x2
Answer:
x= [tex]-2\pm \sqrt{11}[/tex]
Step-by-step explanation:
Here is the correct question: Using the quadratic formula to solve
x²+4x - 7. what are the values of x.
Solving by using quadratic formula.
Formula: [tex]\frac{-b\pm \sqrt{b^{2}-4(ac) } }{2a}[/tex]
∴ In the expression [tex]x^{2} +4x-7[/tex], we have a= 1, b= 4 and c= -7.
Now, subtituting the value in the formula.
=[tex]\frac{-4\pm \sqrt{4^{2}-4(1\times -7) } }{2\times 1}[/tex]
= [tex]\frac{-4\pm \sqrt{4^{2}-4(-7) } }{2}[/tex]
Opening parenthesis.
= [tex]\frac{-4\pm \sqrt{16+28 } }{2\times 1}[/tex]
= [tex]\frac{-4\pm \sqrt{44}}{2}[/tex]
We know 2²=4
= [tex]\frac{-4\pm \sqrt{2^{2}\times 11 }}{2}[/tex]
we know √a²=a
= [tex]\frac{-4\pm 2 \sqrt{11 }}{2}[/tex]
Taking 2 as common in the expression.
= [tex]\frac{2(-2\pm \sqrt{11}) }{2}[/tex]
Cancelling 2
= [tex]-2\pm \sqrt{11}[/tex]
Hence we get, [tex]x=-2\pm\sqrt{11}[/tex]
Oscar project inquiry
The Academy Awards, also known as Oscars, are prestigious awards recognizing achievements in the film industry. The OscarsSoWhite controversy raised concerns about diversity and representation in Hollywood.
Explanation:Academy Awards, commonly known as Oscars, are prestigious awards in the film industry recognizing outstanding achievements in various categories. The controversy surrounding the OscarsSoWhite highlighted issues about diversity and representation in Hollywood.
• It allowed cotton Lint to be produced quickly and efficiently.
• It made the United States the leading producer of cotton.
• It increased the demand for slaves to plant and pick the cotton.
. Because of it, plantations grew, often resulting in poor living and working condition.
Which invention from the late 1700s is being described?
Answer:
Cotton Gin
Explanation:
A cotton gin – meaning "cotton engine" – is a machine that quickly and easily separates cotton fibers from their seeds, enabling much greater productivity than manual cotton separation.[1] The fibers are then processed into various cotton goods such as linens, while any undamaged cotton is used largely for textiles like clothing. The separated seeds may be used to grow more cotton or to produce cottonseed oil.
Handheld roller gins had been used in the Indian subcontinent since at earliest AD 500 and then in other regions.[2] The Indian worm-gear roller gin, invented sometime around the 16th century,[3] has, according to Lakwete, remained virtually unchanged up to the present time. A modern mechanical cotton gin was created by American inventor Eli Whitney in 1793 and patented in 1794. Whitney's gin used a combination of a wire screen and small wire hooks to pull the cotton through, while brushes continuously removed the loose cotton lint to prevent jams. It revolutionized the cotton industry in the United States, but also led to the growth of slavery in the American South as the demand for cotton workers rapidly increased. The invention has thus been identified as an inadvertent contributing factor to the outbreak of the American Civil War.[4] Modern automated cotton gins use multiple powered cleaning cylinders and saws, and offer far higher productivity than their hand-powered precursors.[5]
Eli Whitney invented his cotton gin in 1793. He began to work on this project after moving to Georgia in search of work. Given that farmers were desperately searching for a way to make cotton farming profitable, a woman named Catharine Greene provided Whitney with funding to create the first cotton gin. Whitney created two cotton gins: a small one that could be hand-cranked and a large one that could be driven by a horse or water power.
The invention from the late 1700s is Cotton Gin. It was invented by Eli Whitney in 1793.
What is Cotton Gin?A cotton gin means “cotton engine”. It is a machine that quickly and easily sorts cotton fibers from their seeds, enabling much larger productivity than manual cotton separation.
Eli Whitney began to work on this project after moving to Georgia in search of work. At that time, farmers were desperately searching for a way to make cotton farming profitable.
The fibers of cotton are then processed into various cotton goods such as linens, while undamaged cotton is used largely for textiles like clothing. The separated seeds may be used to grow more cotton or to produce cottonseed oil.
Therefore, Cotton Gin is an invention from the late 1700s.
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3. What is the y-intercept in the equation y= -2x + 5
a) -2
I c) 5
b)3
d) Cannot be Determined
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Equations are generally in the form of:
y = mx + c
where m is the gradient and c is the y intercept
As you can see, in this equation, the y intercept is 5
Thus, your answer is C. 5
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about how many years will it take for $4000 to double at a simple interest rate of 9%
And please explain. Thank you!!!
Answer:
about 11 years
Step-by-step explanation:
we know that
The simple interest formula is equal to
[tex]A=P(1+rt)[/tex]
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
[tex]t=?\ years\\ P=\$4,000\\ A=\$8,000\\r=9\%=9/100=0.09[/tex]
substitute in the formula above
[tex]8,000=4,000(1+0.09t)[/tex]
solve for r
[tex]2=(1+0.09t)[/tex]
[tex]0.09t=2-1[/tex]
[tex]0.09t=1[/tex]
[tex]t=11.1\ years[/tex]
the new iPhone 11 pro has a length of 5.2 inches and a width of 2.8 in the iPhone 11 Pro max is slightly larger and has a length of 6.24 in the length and width of the cell phones are proportional what is the width in inches of the iPhone 11 Pro Max?
Answer:
The width of the Iphone 11 pro max is 3.36 in.
Step-by-step explanation:
since both iPhones are proportional, you will need to find the ratio of what their proportion is to one another. the length of one iphone is 5.2, and the length of the other iphone is 6.24. Therefore, the ratio of proportion to each other would be 5.2/ 6.24. to find the width of the iphone 11 pro max, you will need to use the following equation: 5.2/6.24 x 2.8/? (unknown side)
this gives you the equation 6.24 x 2.8 = 5.2 x ? (unknown side)
(the question mark is the unknown side of the iphone 11 pro max)
6.24 x 2.8 / 5.2 = ? (unknown side)
therefore the unknown side of the iphone 11 pro max is 3.36 in.
By using the concept of proportions, the width of the iPhone 11 Pro Max, when it's proportional to iPhone 11 Pro, is approximately 3.36 inches.
Explanation:The given problem involves finding a proportional measurement. The iPhone 11 pro has dimensions 5.2 inches (length) and 2.8 inches (width). If the iPhone 11 Pro Max is proportional in size and has a length of 6.24 inches, we can find its width using the ratio between the length and the width of the iPhone 11 pro.
We will set up a proportion like this:
[tex]5.2/2.8 = 6.24/x[/tex]
Where x is the width of the iPhone 11 Pro Max. Solving for x will give us the width:
[tex]2.8 * 6.24 = 5.2 * x\\x = (2.8 * 6.24) / 5.2[/tex]
After solving this equation, we find that the width of the iPhone 11 Pro Max is approximately 3.36 inches.
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Divide. Write in simplest form. 10 divided by 1 2/3 ?
Answer: 6
Step-by-step explanation: First rewrite 10 as 10/1 and 1 and 2/3 as 5/3.
Mixed numbers can be changed to improper fractions by multiplying the denominator by the whole number and then adding the numerator. We then put out numerator over our old denominator.
So we have 10/1 ÷ 5/3 or 10/1 × 3/5.
It's important to understand that dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the division to multiplication and flip the second fraction.
Now multiplying across the numerators and across the denominators, we have 30/5. Notice however that 30/5 is not in lowest terms so we divide the numerator and the denominator by the greatest common factor of 30 and 5 which is 6 and we end up with 6.
Therefore, 10 ÷ 1 and 2/3 = 6.
Final answer:
To find 10 divided by 1 2/3, convert the mixed number to an improper fraction (5/3), multiply by the reciprocal (3/5), and simplify the result to get 6.
Explanation:
To divide 10 by 1 2/3, first, we need to convert the mixed number 1 2/3 into an improper fraction. The mixed number 1 2/3 can be written as 5/3 because 1 (which is 3/3) plus 2/3 equals 5/3.
Next, we apply the rule for dividing fractions: we multiply by the reciprocal of the divisor. So, we take 10 (which is the same as 10/1) and multiply it by the reciprocal of 5/3, which is 3/5.
The multiplication looks like this: 10/1 × 3/5 = 30/5.
The result of 30/5 can be simplified to 6, which is the answer in simplest form. Therefore, 10 divided by 1 2/3 equals 6.
If
[tex]f(x) = 36 - {x}^{2} [/tex]
and
[tex]g(x) = 8 - x[/tex]
what is the value of
[tex](f - g)(x)[/tex]
Answer:
[tex] - {x}^{2} + x + 24[/tex]
Step-by-step explanation:
Subtract the functions:
[tex]f - g = (36 - {x}^{2} ) - (8 - x)[/tex]
Simplify:
[tex](36 - {x}^{2} ) - (8 - x) \\ 36 - {x}^{2} - 8 + x \\ - {x}^{2} + x + 24[/tex]
In the figure, sin ZMQP =__
The question is incomplete and the figure is missing. Here is the complete question with the figure attached below.
In the figure, sin ∠MQP = ______.
A. Cos N and Sin R
B. Sin R and Sin N
C. Cos N and Sin M
D. Cos R and Sin N
Answer:
D. Cos R and Sin N
Step-by-step explanation:
Given:
∠MQP = 56°
sin (∠MQP) = sin (56°)
Consider the triangle NMR,
m ∠N = 56°, m ∠R = 34°
sin (∠N) = sin (56°)
So, sin (∠MQP) = sin (∠N) = sin (56°) ---------- (1)
Now, we know that, [tex]\sin x=\cos(90-x)[/tex]
Therefore, sin (∠N) = sin (56°) = cos (90°-56°) = cos (34°)
Now, from the same triangle NMR,
[tex]\cos (\angle R)=\cos (34\°)[/tex]
Therefore, sin (∠N) = cos (∠R) ------------- (2)
Hence, from equations (1) and (2), we have
sin (∠MQP) = sin (∠N) = cos (∠R)
So, option D is correct.
What is the length of the hypotenuse in the 30-60-90 triangle shown below ?
Answer:
[tex]Hypotenuse=10[/tex]
Step-by-step explanation:
The missing figure is attached.For this exercise you can use the following Trigonometric Identity:
[tex]sin\alpha=\frac{opposite}{hypotenuse}[/tex]
Let be "x" the hypotenuse of this right triangle.
You can identify from the figure that, in this case:
[tex]\alpha=60\°\\\\opposite=5\sqrt{3}[/tex]
Then, knowing these values you can substitute them into [tex]sin\alpha=\frac{opposite}{hypotenuse}[/tex]:
[tex]sin(60\°)=\frac{5\sqrt{3}}{x}[/tex]
Finally, you need to solve for "x" in order to find the lenght of the hypotenuse.
This is:
[tex]x*sin(60\°)=5\sqrt{3}\\\\x=\frac{5\sqrt{3}}{sin(60\°)}\\\\x=10[/tex]
Chiquita planned to do the same thing as Rhonda, but she misunderstood what Rhonda meant when she
said "...20% smaller than the one below it." Chiquita made her first ball the same size as Rhonda but
then decreased the volume by 20% for each subsequent ball. How much taller is Chiquita's completed v
snowman than Rhonda's completed snowman? Express your answer as a decimal to the nearest tenth.
Plz show full work
Answer:
to find how much taller Chiquita’s completed snowman is than Rhonda's completed Snowman
We divide the Height of the Chiquita’s snowman by the height of Rhonda’s Snowman
i.e. 7.456/8.532 = 0.87
Step-by-step explanation:
Let Vr1 be the volume of Rhonda’s first ball, and Vc1 be the volume of Chiquita’s first ball. Since the balls are spheres the formula for obtaining their Volume value is given as V= (4/3) x ∏ r3
Since from the question we were told that the first snowball for Rhonda and Chiquita’s Snowman are the same.
Let’s assume that the Vr1 =Vc1=10m²
So to find the radius we make r the subject of formula so r =∛(3V/4∏) where V is equal to 10 for the first spheres and ∏ is a constant with value 3.142 so
r1 = ∛(3×10/4)×3.142 = 1.337m
For the Second Snow ball of Rhonda’s Snowman
Given from the question that first Snow ball is 20% less than the Second Snow Ball
Let Vr2 Denote the volume of the second Rhonda’s Snowball
Vr2 = 20% of Vr1 + Vr1
= 20% of 10 + 10
= (20/100) x 10 + 10
= 12m²
So to find the radius of the second ball for Rhonda’s Snowman
Let r2 denote the radius of the second ball
r2 = ∛(3×12/4)×3.142 = 1.420m
For the Third Snow ball of Rhonda’s Snowman
Given from the question that Second Snow ball is 20% less than the Third Snow Ball
Let Vr3 denote the volume of the third Rhonda’s Snowball
Vr3 = 20% of Vr2 +Vr2
= (20/100) x 12 +12
= 14.4m²
So to find radius of the Third ball for Rhonda’s Snowman
Let r3 denote the radius of the second ball
r3 = ∛(3×14.4/4)×3.142 = 1.509m
For the Second Snow ball of Chiquita’s Snowman
Given from the question that first Snow ball is 20% greater than the Second Snow Ball
Let Vc2 denote the volume of the second Chiquita’s Snowball
For Vc2 = Vc1 - 20% of Vc1
= 10 – (20/100) x 10
= 8m²
So to find the radius of the second ball for Chiquita
Let c2 denote the radius of the second ball
c2 = ∛(3×8/4)×3.142 =1.240m
For the Third Snow ball of Chiquita’s Snowman
Given from the question that Second Snow ball is 20% greater than the third Snow Ball
Let Vc3 denote the volume of the third Chiquita’s Snowball
For Vc3 = Vc2 - 20% of Vc2
= 8 – (20/100) x 8
= 6.4m²
So to find the radius of the second ball for Chiquita
Let c3 denote the radius of the second ball
c3 =∛((3×6.4/4)×3.142) = 1.151m
Therefore Height of Rhonda’s Snowman = Dr1 + Dr2 + Dr3
= 2×r1 +2×r2 +2×r3
= (2×1.337) + (2×1.420) + (2×1.509)
= 8.532m
Therefore the Height of Chiquita’s Snowman = Dc1 + Dc2 +Dc3
= 2×c1 +2×c2 +2×c3
= (2×1.337) + (2×1.240) + (2×1.151)
= 7.456m
No to find how much taller Chiquita’s completed snowman is than Rhonda's completed Snowman
We divide the Height of the Chiquita’s snowman by the height of Rhonda’s Snowman
i.e. 7.456/8.532 = 0.87
Note: if we assume another value for Vr1 = Vc1 we will still get the same ratio.
If $650 is invested in a bank account that earns a nominal 2.5% yearly interest, compounded quarterly, then how much is the investment worth after 10 years
Answer:
[tex]\$833.97[/tex]
Step-by-step explanation:
we know that
The compound interest formula is equal to
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
[tex]t=10\ years\\ P=\$650\\ r=2.5\%=2.5/100=0.025\\n=4[/tex]
substitute in the formula above
[tex]A=650(1+\frac{0.025}{4})^{4*10}[/tex]
[tex]A=650(1.00625)^{40}[/tex]
[tex]A=\$833.97[/tex]
Reasoning A ship is sighted from the top of a lighthouse.
The angle of depression from the lighthouse to the ship is 45°
The distance from the top of the lighthouse directly to the ship is 4 miles.
Calculate the horizontal distance of the ship from the bottom of the lighthouse
Give your answer correct to 2 decimal places.
Answer: Sin45 = x/4
x = 4Sin45
x = 2.83miles
Step-by-step explanation:
Final answer:
The horizontal distance of the ship from the bottom of the lighthouse is equal to the direct distance from the lighthouse to the ship, which is 4.00 miles, because the angle of depression is 45 degrees forming an isosceles right-angled triangle.
Explanation:
The student is asking how to calculate the horizontal distance of a ship from the bottom of a lighthouse when the angle of depression from the top of the lighthouse to the ship is 45° and the direct distance from the lighthouse to the ship is 4 miles. This is a trigonometry problem involving right-angle triangles.
Since the angle of depression is 45°, we can establish that the lighthouse height and the horizontal distance will be equal due to the properties of an isosceles right-angled triangle. Thus, the horizontal distance from the bottom of the lighthouse to the ship is the same as the distance from the top of the lighthouse directly to the ship, which is given as 4 miles. Therefore, the horizontal distance is 4.00 miles.
what is an equation of the line that passes through the points (-4,-1) and (2,8)?
Answer:
y=3/2 x + 5
Step-by-step explanation:
[tex]y = mx + c[/tex]
Firstly, find m (gradient).
m= (y1-y2)/(x1- x2)
m= 8-(-1)/ 2-(-4)
m= 9/ 6
m= 3/2
Please leave gradient in improper fraction if its value is not a whole number.
Now substitute m into the equation:
y= 3/2 x + c
Then substitute a coordinate to find c:
When y= 8, x= 2,
8= 3/2 (2) + c
8= 3 + c
c= 8 - 3 = 5
Thus, the equation of the line is y= 3/2 x + 5.
If you received $175.84 on $314 invested at a rate of 7%, for how long did you invest the principle?
Answer:
8 years
Step-by-step explanation:
Use formula
[tex]I=P\cdot r\cdot t,[/tex]
where
I = interest
P = principal
r = rate (as decimal)
t = time
In your case,
I = $175.84
P = $314
r = 0.07, then
[tex]175.84=314\cdot 0.07\cdot t\\ \\175.84=21.98t\\ \\t=\dfrac{175.84}{21.98}\\ \\t=8[/tex]
The question asks for the duration of an investment. We use the formula for simple interest to solve this. By plugging the known values into the rearranged formula for time, we can find the duration of the investment.
Explanation:The question asks for how long the principle was invested if you received $175.84 on $314 invested at a rate of 7%. The calculation is based on the formula for simple interest, which is I = PRT (Interest = Principal x Rate x Time). From the question, we know that the Interest (I) is $175.84, the Principal (P) is $314, and the Rate (R) is 7% or 0.07 when expressed as a decimal.
We need to find the Time (T), which can be rearranged from the formula as T = I / (P x R). By plugging the values into this formula, we get T = 175.84 / (314 x 0.07). Solving for T will give the time period the money was invested for.
Learn more about Simple Interest here:https://brainly.com/question/22621039
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Philip ran a sprint of two hundred feet in twenty-two seconds. At what speed was Philip running in miles per hour? (1 mile = 5280 feet). Round to the nearest tenth
Answer:
6.2 miles per hour
Step-by-step explanation:
Given: Philip ran 200 feet.
Time taken is 22 seconds.
First lets find out speed of Philip.
Speed= [tex]\frac{distance}{time}[/tex]
∴ Speed= [tex]\frac{200}{22} \ ft/sec[/tex]
Speed= 9.09 ft/sec.
Now, converting speed feet per second to miles per hours.
Remember, 1 miles= 5280 ft and 1 hours= 3600 seconds.
∴ Speed in miles per hour= [tex]9.09\times \frac{\frac{1}{5280} }{\frac{1}{3600} }[/tex]
⇒ Speed in miles per hour= [tex]9.09\times \frac{3600}{5280}[/tex]
⇒Speed in miles per hour= [tex]9.09\times 0.68= 6.19 \frac{mi}{h}[/tex]
∴ Philip ran at a speed of 6.2 miles per hour(nearest tenth decimal).
Easy Question pls help. (Algebra II type problems)
This first answer is correct, but the second part is the domain of it and I don't know how to do it. Please help.
Answer:
[tex]\large\boxed{if\ x\neq-3\ \wedge\ y\neq0\ \wedge\ x\neq y\ \wedge\ x\neq -y}[/tex]
second
[tex]\large\boxed{y\neq0\ \wedge\ x\neq-y\ (y\neq-x)}[/tex]
Step-by-step explanation:
We know that dividing by 0 is impossible.
Therefore, the denominator of the expression must be different from 0.
[tex]\text{For}\\\\\dfrac{(x-y)^2}{2xy+6y}\times\dfrac{4x+12}{x^2-y^2}\\\\\\2xy+6y\neq0\qquad(1)\\\\x^2-y^2\neq0\qquad(2)[/tex]
[tex](1)\\2xy+6y\neq0\qquad\text{distribute}\\\\2y(x+3)\neq0\iff2y\neq0\ \wedge\ x+3\neq0\\\\2y\neq0\qquad\text{divide both sides by 2}\\\boxed{y\neq0}\\\\x+3\neq0\qquad\text{subtract 3 from both sides}\\\boxed{x\neq-3}\\==========================\\(2)\\x^2-y^2\neq0\qquad\text{use}\ a^2-b^2=(a-b)(a+b)\\(x-y)(x+y)\neq0\iff x-y\neq0\ \wedge\ x+y\neq0\\\boxed{x\neq y}\ \wedge\ \boxed{x\neq-y}[/tex]
[tex]\text{For}\\\\\dfrac{2(x-y)}{y(x+y)}\\\\y(x+y)\neq0\iff y\neq0 \wedge\ x+y\neq0\\\\ \boxed{y\neq0}\ \wedge\ \boxed{x\neq-y}[/tex]