please help solve this equation

Please Help Solve This Equation

Answers

Answer 1
u see that 75 degree angle...that angle and the one next to it...the angle in ur triangle...they make a linear pair and are = to 180.....so the angle in ur triangle that has no number by it, is gonna be 180 - 75 = 105.

and the interior angles of a triangle = 180
< x + 105 + 32 = 180
< x + 137 = 180
< x = 180 - 137
< x = 43 <==
Answer 2
the answer is 43
180-75=105
105+32=137
180-137=43
x=43

Related Questions

which is the longer length 29ft or 9 yards

Answers

Convert 9 yards into feet:  9 yards * (3 feet) / (1 yard) simplifies to 27 feet.

9 yards, or 27 feet, is shorter than 29 feet.

29 feet is longer than 27 feet.

To compare 29 feet and 9 yards, convert 9 yards to feet, which equals 27 feet. Since 29 feet is greater than 27 feet, 29 feet is longer.

To determine which length is longer between 29 feet and 9 yards, we need to convert one of the measurements to the same unit. We know that 1 yard is equal to 3 feet. Therefore, to convert 9 yards to feet:

9 yards x 3 feet/yard = 27 feet

Comparing the two lengths, 29 feet is longer than 27 feet.

Thus, 29 feet is the longer length.


Myra borrowed $1,500 at 12.5% interest for three months. How much
does she have to repay under a single-payment plan?
a. $46.88
b. $1,562.50
c. $1,546.88
d. $187.50

**please explain how you got the answer, it's just so that I can understand

Answers

now, this is for 3 months, and we're assuming, I guess it doesn't really matter, but using simple interest.

now, 3 months is not even a year, there are 12 months in 1 year, so 3 months is 3/12 years, or 1/4.

[tex]\bf \qquad \textit{Simple Interest Earned}\\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\to& \$1500\\ r=rate\to 12.5\%\to \frac{12.5}{100}\to &0.125\\ t=years\to \frac{3}{12}\to &\frac{1}{4} \end{cases} \\\\\\ I=1500\cdot 0.125\cdot \cfrac{1}{4}\implies 46.875\approx 46.88[/tex]

You buy the same number of brushes, rollers, and paint cans. Write and expression in simplest form that represents the toral amount of money you spend for the painting supplies

Answers

xb + xr + xc = m
X being the amount of supplies
B are the price of the brushes
R is the price of the rollers
C the price of the paint cans
M is the total price
YOU'RE WELCOME :D

Jay is cutting a roll of biscuit dough into slices that are 3/8 inch thick. If the roll is 10 1/2 inches long, how many slices
can he cut?

Answers

(10 1/2) / (3/8) =
21/2 * 8/3 =
84 / 3 =
28 <== he can cut 28 slices

The number of slices that Jay could make is equal to 28

What is a mixed fraction?

A fraction represented with its quotient and remainder is a mixed fraction. For example, 2 1/3 is a mixed fraction, where 2 is the quotient, and 1 is the remainder. So, a mixed fraction is a combination of a whole number and a proper fraction.

Given here: Dimension of the roll= 10¹/₂ inches and length of each slice=3/8 inch

Thus the number of slices that Jay could make is = 10+ 1/2 /3/8

                                                                                  =21/2 × 8/3

                                                                                  =28

Hence The number of slices that Jay could make is equal to 28

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one pumpkin vine produce 5pumpkins I harvest 30 how many vines do I have

Answers

you have 6 vines because if each vine produces 5 pumpkins and u harvested 30, your equation is 5x=30 solve for x

Twice the difference between a number and 10 is equal to 6 times the number plus 16. What is the number?

Answers

this is a lot of math to write.... so I'll just say the answer is -21 :D

Find the solution to the linear system of differential equations {x′y′==−5x+3y−18x+10y satisfying the initial conditions x(0)=4 and y(0)=11

Answers

[tex]\begin{cases}x'=-5x+3y\\y'=-18x+10y\end{cases}[/tex]

[tex]\begin{bmatrix}x\\y\end{bmatrix}'=\begin{bmatrix}-5&3\\-18&10\end{bmatrix}\begin{bmatrix}x\\y\end{bmatrix}[/tex]

The coefficient matrix has eigenvalues [tex]\lambda=1,4[/tex], with corresponding eigenvectors [tex]\mathbf v=\begin{bmatrix}1\\2\end{bmatrix},\begin{bmatrix}1\\3\end{bmatrix}[/tex]. So the general solution is

[tex]\begin{bmatrix}x\\y\end{bmatrix}=C_1e^t\begin{bmatrix}1\\2\end{bmatrix}+C_2e^{4t}\begin{bmatrix}1\\3\end{bmatrix}[/tex]

Given that [tex]x(0)=4[/tex] and [tex]y(0)=11[/tex], we get

[tex]\begin{cases}4=C_1+C_2\\11=2C_1+3C_2\end{cases}\implies C_1=1,C_2=3[/tex]

so that the particular solution to the system is

[tex]\begin{bmatrix}x\\y\end{bmatrix}=e^t\begin{bmatrix}1\\2\end{bmatrix}+3e^{4t}\begin{bmatrix}1\\3\end{bmatrix}[/tex]

or in equivalent terms,

[tex]\begin{cases}x=e^t+3e^{4t}\\y=2e^t+9e^{4t}\end{cases}[/tex]
Final answer:

The problem given is a linear system of differential equations with initial conditions, but the system is not properly defined and appears to have a typo. Normally, such a system would be in the form x' = ax + by and y' = cx + dy, with initial conditions that would determine the particular solution.

Explanation:

This question is about solving a linear system of differential equations with initial conditions, specifically the system {x′y′==−5x+3y−18x+10y with the initial conditions x(0)=4 and y(0)=11. However, there seems to be a typo, as the system is not properly defined and doesn't make sense as written. Under normal conditions, such a system would be in the form x' = ax + by and y' = cx + dy, where a,b,c,d are constants and x' and y' are the derivatives of x and y respectively.

Additionally, the initial conditions x(0)=4 and y(0)=11 would serve to define the particular solution for the system of differential equations. Correcting and resolving such typos would be the first step in progressing towards a solution.

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Arleen has a gift card for a local lawn and garden store. She uses the gift card to rent a tiller for 4 days. It cost $35 per day to rent the tiller. She also buys a rake for $9.

A. Find the change to the value on the gift card. (Question #1)

B. The original amount on the gift card was $200. Does Arleen have enough to buy a Wheelbarrow for $50? (Question #2)

Answers

35 • 4 = 140 + 9 =149 for rent and rake
200 - 149 = 51 left on gift card. Yes she has enough to buy the wheelbarrow.

Answer:

Step-by-step explanation:

Arleen has a gift card of the amount = $200

The total cost to rent the tiller for 4 days and a rake for $9

= ($35 × 4) + $9

= 140 + 9 = $149

A. Now the balance on the gift card = $200 - $149

                                                            = $51

B. Arleen have $51 in her gift card so she has enough to buy a wheelbarrow for $50.00.

                                                                   

If g(x) = x3 - 5 and h(x) = 2x - 2, find g(h(3))

Answers

g(h(3)) simply means g of h of 3
mathematically represented as:
h(3)=2(3)-2 which gives 4
you then substitute 4 with X in g(x)
we then have g(h(3)) where h(3)=4 and X is also =h(3) as
g(4)=4^3-5
=59

• • g(h(3))=59

The required simplified value of the g(h(3)) is given as 59.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
g(x) = x³ - 5 and h(x) = 2x - 2

h(3) = 2(3) - 2
h(3) = 4


g(h(3)) = 4³ - 5
         = 64 - 5
         = 59

Thus, the required simplified value of the g(h(3)) is given as 59.

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Evaluate the upper and lower sums for f(x) = 1 + x2, −1 ≤ x ≤ 1, with n = 3 and 4.

Answers

Answer:

92/27 and 58/27 for n=3 and 13/4 and 9/4 for n=4

Step-by-step explanation:

n = 3: First let’s find ∆x:

∆x = (b − a)/n = 1 − (−1)3 = 2/3

We will have three intervals: −1 ≤ x ≤ −1/3, −1/3 ≤ x ≤1/3, 1/3 ≤ x ≤ 1.

Upper sum: On the first interval, the highest point occurs at f(−1) = 2. On the second interval, the highest point occurs at f(1/3) = f(−1/3) = 1 + ( 1/3)^2=1 + 1/9 = 10/9

On the third interval, the highest point occurs at f(1) = 2. So A ≈ A upper = 3Σ i=1 f(xi)∆x = [f(−1) + f (1/3)+ f(1)]∆x = (2 +10/9+ 2)*2/3 = 92/27

Lower sum: On the first interval, the lowest point occurs at f(−1/3) = 10/9

On the second interval, the lowest point occurs at f(0) = 1. On the third interval, the lowest point occurs at f(1/3) = 10/9. SoA ≈ A lower =3Σ i=1 f(xi)∆x = f(−1/3) + f(0) + f(1/3) . ∆x = (10/9+ 1 +10/9)· 2/3= 58/27

Apply the same technique for n=4

A digit thermometer reports a temperature of 32*F as being 32.02*F. Which of the followings true?

A. The thermometer is both accurate and precise.
B. The thermometer is neither accurate nor precise.
C. The thermometer is precise, but not accurate.
D. The thermometer is accurate, but not precise.

Answers

Answer: The thermometer is both accurate and precise

Step-by-step explanation: Hope this helped!!

AB = 2 and AC = 11. Find m∠C to the nearest degree.

Answers

Answer:

10°

Step-by-step explanation:

To find this, we look at the sides of the triangle that we are given and their position in relation to ∠C.

AB is opposite ∠C and AC is adjacent to ∠C.

The ratio of opposite/adjacent is the ratio of tangent.  This gives us the equation

tan C = 2/11

To solve this for C, we take the inverse tangent of each side:

tan⁻¹(tan C) = tan⁻¹(2/11)

C = 10.305 ≈ 10°

The measure of the angle ∠c will be 10°.

What is trigonometry?

The branch of mathematics that sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry.

The trigonometric functions, also known as circular, angle, or goniometric functions in mathematics, are real functions that link the angle of a right-angled triangle to the ratios of its two side lengths.

To find this, we look at the sides of the triangle that we are given and their position in relation to ∠C.

AB is opposite ∠C and AC is adjacent to ∠C.

The ratio of opposite/adjacent is the ratio of a tangent.  This gives us the equation

tan C = 2/11

To solve this for C, we take the inverse tangent of each side:

tan⁻¹(tan C) = tan⁻¹(2/11)

C = 10.305 ≈ 10°

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Evaluate the line integral ∫cf⋅dr∫cf⋅dr, where f(x,y,z)=−5xi+yj+zkf(x,y,z)=−5xi+yj+zk and c is given by the vector function r(t)=⟨sint,cost,t⟩, 0≤t≤3π/2.

Answers

[tex]\displaystyle\int_C\mathbf F\cdot\mathrm d\mathbf r=\int_0^{3\pi/2}\langle-5\sin t,\cos t,t\rangle\cdot\langle\cos t,-\sin t,1\rangle\,\mathrm dt[/tex]
[tex]=\displaystyle\int_0^{3\pi/2}(-6\sin t\cos t+t)\,\mathrm dt=\frac{9\pi^2}8-3[/tex]

Given that the points (-1, 6), (3, 6), (3, 1), and (-1, 1) are vertices of a rectangle, how much shorter is the width than the length?

Answers

check the picture below, you can pretty much count the units off the grid.

Answer:

1 unit shorter

Step-by-step explanation:

By plotting the given points in the coordinate plane,

We get a rectangle ABCD having vertices,

A(-1,6), B (3,6), C (3,1), D (-1,1)

By the distance formula,

Shorter side or width of the rectangle,

[tex]AB=\sqrt{(3-(-1))^2+(6-6)^2}=\sqrt{4^2+0}=4\text{ unit}[/tex]

Longer side or length of the rectangle,

[tex]BC=\sqrt{(3-3)^2+(1-6)^2}=\sqrt{5^2}=5\text{ unit}[/tex]

The difference between length and width,

[tex]BC - AB = 5 - 4 = 1\text{ unit}[/tex]

Hence, the width of rectangle is 1 unit less than the length.

A particle moving along a hyperbola xy =8. as it reaches the point (4,2), the y-coordinate is decreasing at a rate of 3cm/s. how fast is the x-coordinate of the point changing at that instant.

Answers

increasing by 6 cm/s. Since you're looking for rate of change per instant, you need to get the first derivative of the function the point is moving along. d/dx [xy] = 8 d/dx [y]*x + y*d/dx[x] = 0 y'x + 1y = 0 y'x + y = 0 y'x = -y y' = -y/x So the slope of the function at (4,2) is y' = -2/4 y' = -1/2 The rate of X changing will be this equation that then is solved for X. So -1/2 = -3/X -X/2 = -3 X = 6 So at the moment the particle reaches (4,2) the value of the x-coordinate is increasing at a rate of 6 cm/s

The x-coordinate of the point is changing at a rate of [tex]\( 6 \text{ cm/s} \)[/tex].

To determine how fast the x-coordinate of the particle is changing at the instant it reaches the point (4, 2), we start with the equation of the hyperbola and apply the related rates method.

Given:

[tex]\[ xy = 8 \][/tex]

Differentiate both sides of the equation with respect to time [tex]\( t \)[/tex]:

[tex]\[ \frac{d}{dt}(xy) = \frac{d}{dt}(8) \][/tex]

Using the product rule on the left side:

[tex]\[ x \frac{dy}{dt} + y \frac{dx}{dt} = 0 \][/tex]

We need to find [tex]\(\frac{dx}{dt}\)[/tex] when the particle is at the point [tex]\((4, 2)\)[/tex] and [tex]\( \frac{dy}{dt} = -3 \text{ cm/s} \)[/tex] (since the y-coordinate is decreasing).

Substitute [tex]\( x = 4 \)[/tex], [tex]\( y = 2 \)[/tex], and [tex]\( \frac{dy}{dt} = -3 \)[/tex] into the differentiated equation:

[tex]\[ 4 \left( -3 \right) + 2 \frac{dx}{dt} = 0 \][/tex]

Simplify and solve for [tex]\( \frac{dx}{dt} \)[/tex]:

[tex]\[ -12 + 2 \frac{dx}{dt} = 0 \][/tex]

[tex]\[ 2 \frac{dx}{dt} = 12 \][/tex]

[tex]\[ \frac{dx}{dt} = 6 \][/tex]

A bouncing ball reaches a height of 27 feet at its first peak, 18 feet at its second peak, and 12 feet at its third peak. Describe how a sequence can be used to determine the height of the ball when it reaches its fourth peak.

Answers

27-18 = 9
18-12 = 6
12- n = 3

-n = 3-12
-n = -9 ( cancel the negative sign by simple divide both sides with -1 )
n = 9

Therefore the height of the ball is 9 feet when it reaches fourth peak .

Answer:

so on the fourth bounce the ball will reach a height of 8 feet

Step-by-step explanation:

There is a common ratio of 2/3 between the height of the ball at each bounce so the bounce height from a geometric sequence 27,18,12 two-thirds of 12 is 8 so on the fourth bounce the ball will reach a height of 8 feet

which statements are true about the regular polygon? check all that apply.

Answers

its 1, 3, and 5 I think

Answer:

1) False

2) True

3) True

4) False

5) True

Step-by-step explanation:

We are given the following information in the question:

1) False

The sum of measures of interior angle is given by:

[tex](n-2)\times 180^\circ\\\text{where n is the number of sides in regular polygon}[/tex]

Putting n = 5

Sum of interior\r angle = [tex](5-2)\times 180 = 3\times 180 = 540^\circ[/tex]

2) True

Each interior angle measure =

[tex]\displaystyle\frac{\text{Sum of interior angles}}{\text{Number of sides}} = \frac{540}{5} = 108^\circ[/tex]

3) True

All the angles in a regular polygon are equal.

4) False

The polygon is a regular pentagon.

5) True

The sum of measures of interior angle is given by:

[tex]180^\circ(5-2)[/tex]

What is thirty-four thousand centimeters per second in scientific notation

Answers

The answer I got was 3.4 x 10^4 cm per second.  To convert 34,000 to scientific notation, I moved the decimal place at the last 0 of 34000 to four places to the left to get from 34000. to 3.4. Whenever you move the decimal to the left, the exponent will be a positive number. I got 10^4 because I move four places to the left. 

As a result, I got 3.4 x 10^4 per second. (Please check my method to see if it is correct)

Also, if you move the decimal to the right, the exponent will be negative. 

The speed of thirty-four thousand centimeters per second in scientific notation is 3.4  x 10^2 meters per second, after converting centimeters to meters.

The speed of thirty-four thousand centimeters per second can be expressed in scientific notation by first converting it to the base unit of meters per second (since one meter is equal to one hundred centimeters) and then expressing it in the form of a significant figure followed by the power of 10.

First, convert centimeters to meters:

34000 centimeters = 34000 / 100 meters = 340 meters.

Now, express this in scientific notation:

340 meters/second = 3.4 x 102 meters/second.

This shows the speed in scientific notation with the unit meters per second, which is a combination of two SI units.

"At a college, 4/5 of the students take an english class. Of these students, 5/6 take composition. Which fraction of the students at the college take compostion

Answers

4/5 of a college takes an english class.

5/6 of the 4/5 of the college takes composition.

Thus (5/6)*(4/5) = 20/30 = 2/3 of the college takes composition.

Answer:2/3

Step-by-step explanation:

Josh is twenty-five years older than his son Carlos. In ten years Josh will be twice as old as Carlos. How old is Carlos now?

Answers

15, hope this helps!

A baseball team has a goal of hitting more than 84 home runs this season. They average 7 home runs each game and have already hit 35 home runs so far. How many more games, x, will it take the baseball team to reach its home run hitting goal if they continue to average 7 home runs per game?

Answers

The equation is 7x + 35 > 84. Solving for x, you get x = 7. This is your solution

Final answer:

The baseball team needs to play 7 more games to exceed its goal of 84 home runs, based on their current average of 7 home runs per game.

Explanation:

The baseball team has hit 35 home runs and wants to hit more than 84. To find how many more games it will take, we first calculate the total number of home runs needed to surpass 84, which is 84 - 35 = 49 home runs. Since the team averages 7 home runs per game, we divide the remaining home runs needed by the average per game to find x, the number of games needed: 49 home runs / 7 home runs per game = 7 games.

Therefore, the baseball team needs to play 7 more games to reach its goal, assuming the average stays constant.

A spherical block of ice melts so that its surface area decreases at a constant rate: ds/dt = - 8 pi cm^2/s. calculate how fast the radius is decreasing when the radius is 3cm. (recall that s = 4 pi r^2.)

Answers

The rate a which the surface area, S, decreases is
[tex] \frac{dS}{dt} =-8 \pi \, cm^{2}/s[/tex]

The surface area is
S = 4πr²
where r =  the radius at time t.

Therefore
[tex] \frac{dS}{dt} = \frac{dS}{dr} \frac{dr}{dt} =8 \pi r \frac{dr}{dt} \\\\ -8 \pi = 8 \pi r \frac{dr}{dt} \\\\ \frac{dr}{dt} =- \frac{1}{r} [/tex]

When r = 3 cm, obtain
[tex] \frac{dr}{dt}]_{r=3} = - \frac{1}{3} \, cm/s [/tex]

Answer:  -1/3  cm/s  (or -0.333 cm/s)

1. The expressionx^3+3x^2+x-5 represents the total length across the front of the mansion. Find the length of side I. Show all work. X will stay a variable and your answer will be a polynomial

2. 2. The owners of the mansion want to install a new security system to protect the outside of their house. To get an estimate for the cost of the new security system they need to know the total distance around the outside of the mansion.

a. How many sides does the Mansion have?
b. What side would be the same length as side L?
c. What side would be the same length as side D?
d. Find an expression for the perimeter of the mansion. Show all work. X will stay a variable and your answer will be a polynomial.

3. The owners of the mansion also want to install new AC units. You must know the amount of air on the first floor of the mansion to determine the size of AC units necessary to function properly. The first floor of the mansion covers, or has a base, 15x^4+20x^2+45x+590 square feet. If the height of the ceilings on the first floor is 5x-3, find the total volume of air on the first floor. Use the formula V=Bh where Bis the area of the base and his the height. Show all work. X will stay a variable and your answer will be a polynomial.

4. The area of the Gothic Room in the mansion’s layout is2x^3+25x^2+169, what are the dimensions (length and width) for the room? Side E is x + 13. Use synthetic division to find the other side width. Show all work. X will stay a variable and your answer will be a polynomial.

Answers

Part 1:

Given that the expression [tex]x^3+3x^2+x-5[/tex] represents the total length across the front of the mansion. Let the length of side I be a, then

[tex]x^4-2x^3+x-10+a-x^3+5x^2+2=x^3+3x^2+x-5 \\ \\ \Rightarrow a=x^3+3x^2+x-5-x^4+2x^3-x+10+x^3-5x^2-2 \\ \\ =\bold{-x^4+4x^3-2x^2+3}[/tex]



Part 2:

From the given figure it can be seen that the mansion has 12 sides labelled A - L.
Side F will be of the same length as side L.
Side B will be of the same length as side D.
The perimeter of figure is the sum of all the lengths of the outlines of the figure.
The perimeter is given by:

[tex]P=2(x^3+3x^2+x-5)+2(-2x^4+24x^2-10)+2(4x)+x^2-x+6 \\ \\ =2x^3+6x^2+2x-10-4x^4+48x^2-20+8x+x^2-x+6 \\ \\ =\bold{-4x^4+2x^3+55x^2+9x-24}[/tex]



Part 3:

The volume of an object is given by: V = Area of base x height.

Given that the first floor of the mansion has a base, [tex]15x^4+20x^2+45x+590\ square\ feet[/tex]. If the height of the ceilings on the first floor is 5x-3, then, the total volume of air on the first floor is given by:

[tex]V=(5x-3)(15x^4+20x^2+45x+590) \\ \\ =75x^5+100x^3+225x^2+2950-45x^4-60x^2-135x-1770 \\ \\ =\bold{75x^5-45x^4+100x^3+165x^2-135x+1180}[/tex]



Part 4:

Given that the area of the Gothic Room in the mansion’s layout is [tex]2x^3+25x^2+169[/tex], with the length of one of the sides of the room as x + 13. Then, the length of the other side is given by:

-13  |  2   25   0   169
       |
       |      -26  13 -169
       |______________
         2    -1   13     0

Therefore, the length of the other side of the length is [tex]-26x^2+13x-169[/tex]

Kwan's parents bought a home for $50,000 in 1997 just as real estate values in the area started to rise quickly. Each year, their house was worth more until they sold the home for $309,587. Model the growth of the home's value from 1997 to 2007 with both linear and an exponential equation. Graph the two models below.

Answers

A. First let us start with the linear model.

The equation is in the form of y = m x + b

Calculating for the slope m:

m = (309,587 – 50,000) / (2007 – 1997)

m = 25,958.7

 

Subsituting:

y = 25,958.7 x + b

Taking x = 1997, y = 50,000. Solve for b:

50,000 = 25,958.7 (1997) + b

b = -51,789,523.9

 

The complete equation is therefore:

y = 25,958.7 x - 51,789,523.9

 

 

B. The exponential model has the following form:

y = a b^x

where a and b are constants

 

Taking x1= 1997, y1 = 50,000; x2 = 2007, y2 = 309,587

50,000 = a b^1997

309,587 = a b^2007

 

Combining in terms of a:

50,000 / b^1997 = 309,587 / b^2007

b^2007 / b^1997 = 309,587 / 50,000

b^10 = 6.19174

b = 1.2

 

Substituting:

y = a 1.2^x

 

Solving for a:

50,000 = a 1.2^1997

a = 3.75 x 10^-154

 

The complete equation is:

y = 3.75 x 10^-154 * 1.2^x

Maria put $500 into a savings account. She made no more deposits or withdrawals. The account earns 2% simple interest per year. How much money will be in the account after 5 years?5,000,50,550,1000

Answers

Hello! The formula for simple interest is prt. That means multiply the principal (initial amount) by the rate (simple interest rate) by time (usually in months or years). $500 is the principal and 2% is the interest rate. Multiply both numbers. 500 * 2% (0.02) is 10. $10 is the simple interest given out per year. We're looking for the total for 5 years. 10 * 5 is 50. Add the amount of interest to the principal. 500 + 50 is 550. There. Maria will have $550 in her savings account after 5 years. The answer is C: 550.

please can you help me!

z-² as a fraction

Answers

[tex]\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\ a^{-{ n}} \implies \cfrac{1}{a^{ n}} \qquad \qquad \cfrac{1}{a^{ n}}\implies a^{-{ n}} \qquad \qquad a^{{{ n}}}\implies \cfrac{1}{a^{-{{ n}}}}\\\\ -------------------------------\\\\ z^{-2}\implies \cfrac{1}{z^2}[/tex]

Three quarters of the batch of twenty cookies burned when you forgot to take them out of the oven how many cookies burned

Answers

15 cookies burned because if you Turn [tex] \frac{3}{4} [/tex] into a decimal then multiply it by 20 you get 15 and thats your answer.

At the city museum, child admission is $5.80 and adult admission is $9.00 . On Monday, three times as many adult tickets as child tickets were sold, for a total sales of $984.00 . How many child tickets were sold that day?

Answers

Answer:

30

Step-by-step explanation:

A bundle of 3 adult tickets and 1 child ticket sells for $32.80, so there were ...

... $984/$32.80 = 30 . . . . bundles sold.

The number of child tickets sold was 30.

_____

Using an equation

Let c represent the number of child tickets sold. Then 3c is the number of adult tickets sold. The total revenue is ...

... 5.80c + 9.00·(3c) = 984.00

... 32.80c = 984.00 . . . . . . . . . . simplify

... c = 984.00/32.80 = 30 . . . . . divide by the coefficient of c

Reuben bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He paid for the computers using two different financing plans. For the desktop the interest rate was 7% per year, and for the laptop it was 9.5% per year. The total finance charges for one year were $303 . How much did each computer cost before finance charges?

Answers

same case as Pablo's, more or less.

a = price for the desktop

b = price for the laptop

we know the laptop is 150 bucks more than the desktop,  b = a + 150.

how much is 7% of a?  (7/100) * a, 0.07a.

how much is 9.5% of b?  (9.5/100) * b, 0.095b.

total interests for the financing add up to 303, 0.07a + 0.095b = 303.

[tex]\bf \begin{cases} \boxed{b}=a+150\\ 0.07a+0.095b=303\\ ----------\\ 0.07a+0.095\left(\boxed{a+150} \right)=303 \end{cases} \\\\\\ 0.07a+0.095a+14.25=303\implies 0.165a=288.75 \\\\\\ a=\cfrac{288.75}{0.165}\implies a=1750[/tex]

how much was it for the laptop?  well b = a + 150.

Under good weather conditions, 80% of flights arrive on time. during bad weather, only 30% of flights arrive on time. tomorrow, the chance of good weather is 60%. what is the probability that your flight will arrive on time?

Answers

48% chance that your flight would arrive on time.
Final answer:

The probability that your flight will arrive on time is 0.6, or 60%.

Explanation:

To calculate the probability that your flight will arrive on time, we can use the concept of conditional probability. Let A represent the event of good weather and B represent the event of the flight arriving on time. We know P(A) = 0.6, P(B|A) = 0.8, and P(B|A') = 0.3 (where A' represents bad weather). We can use the formula for conditional probability: P(B) = P(A) * P(B|A) + P(A') * P(B|A'). Substituting the given values, we have P(B) = 0.6 * 0.8 + 0.4 * 0.3 = 0.48 + 0.12 = 0.6. Therefore, the probability that your flight will arrive on time is 0.6, or 60%.

Learn more about Probability here:

https://brainly.com/question/32117953

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