Answer: Christina weighs 98 pounds.
Step-by-step explanation: The formula to solve this problem is x + 17 + x = 179, where x equals Sarah’s weight.
X + 17 + x = 179
First you need to combine the x values:
2x + 17 = 179
Next, subtract 17 from both sides:
2x = 162
Finally, divide both sides by 2:
X = 81
Sarah’s weight is 81 pounds and Christina weighs 17 pounds more, which is 98 pounds. You can double check your work by adding both of their weights (98 + 81) to make sure that your answer is correct.
Final answer:
By setting up a system of equations with the given information, we can solve for Christina's weight. Christina weighs 125 pounds.
Explanation:
To determine how much Christina weighs, we can set up an equation based on the information given. Let's define Sarah's weight as 's' and Christina's weight as 'c'. According to the question, Christina weighs 17 pounds more than twice Sarah's weight. So we can write the equation as:
c = 2s + 17
The combined weight of Christina and Sarah on the freight scale is 179 pounds. We represent this with another equation:
c + s = 179
Now we have a system of two equations:
c = 2s + 17c + s = 179Substituting the expression for 'c' from the first equation into the second equation gives us:
(2s + 17) + s = 179
Combining like terms, we have:
3s + 17 = 179
Moving 17 to the other side by subtracting 17 from both sides:
3s = 179 - 17
3s = 162
Dividing both sides by 3 to find Sarah's weight:
s = 162 / 3
s = 54
Now that we know Sarah weighs 54 pounds, we can find Christina's weight using the first equation:
c = 2(54) + 17
c = 108 + 17
c = 125
So, Christina weighs 125 pounds.
I need help with this problem please
Answer:
The second option.
Step-by-step explanation:
The reasoning behind this is because it is a mixed fraction and the rest aren't.
Hope that helps!
Chen completed the division problem below.
Answer:
The error is:
He multiplied the dividend by 100 instead of 10
Step-by-step explanation:
∵ 1.926 ÷ 0.9 ⇒ means
1.926 = 1926/1000 ⇒ dividend
0.9 = 9/10 ⇒ divisor
* [tex]\frac{1926}{1000}[/tex] ÷ [tex]\frac{9}{10}[/tex]
[tex]\frac{1926}{1000}[/tex] × [tex]\frac{10}{9}[/tex]
[tex]\frac{1926}{100}[/tex] × [tex]\frac{1}{9}[/tex]
∵ 1926/100 = 19.26 ⇒ dividend
∴ 19.26 ÷ 9 = 1926/100 ÷ 9
19 ÷ 9 = 2 with remainder 1/9
12 ÷ 9 = 1 with remainder 3/9
36 ÷ 9 = 4 no remainder
∴ The quotient is 214/100 = 2.14
Answer:He multiplied the dividend by 100 instead of 10
Step-by-step explanation:
When the coordinates (1,1) (7,3) (8,0) and (2,-2) are joined which shape is formed ?
Answer:
A rectangle.
Step-by-step explanation:
To graph the points find their pairs on a graph and leave a mark in so area. Eventually, it'll reveal the shape.
Hope this helps,
Davinia.
i need help, please help me please
Answer:
a. how old are the people living in ______(where you are)?
b. What is the people living in _____ (where you are) favorite color?
c. What is the age of the principals in the schools that are in ____ county?
3. How far do the students at _____ school live from school?
4. Do the students at ___ school enjoy to write with pencils, pens, markers, or crayons the most?
5. What is the age of the math teachers in the schools that are in ____ county?
Step-by-step explanation:
Which Of the following could not be points on the units circle ?
answer A , that could not be point
Answer:
Options a and c
Step-by-step explanation:
A unit circle is one which has origin as centre and radius as 1.
The equation of the unit circle would be
[tex]x^2+y^2 =1[/tex]
Thus we find that any point satisfying the above equation lies on the unit circle
Let us try the given points one by one
a) [tex](0.8)^2+(-0,6)^2 =1[/tex]. Hence lies on the circle
b) (1,1)
Cannot lie on circle since [tex]1^2+1^2 \neq 1[/tex]
c) [tex](\frac{-2}{3} ,\frac{\sqrt{5} }{3} )\\(\frac{-2}{3})^2+(\frac{\sqrt{5} }{3} )^2 =1[/tex]. Hence lies on the circle
d) [tex](\frac{\sqrt{3} }{2} ,\frac{1}{3} )\\(\frac{\sqrt{3} }{2})^2+(\frac{1}{3} )^2\\\neq 1[/tex]
Hence does not lie on the circle
Only option A,C are right
John deposited $2,860 in a bank that pays 9% interests, compounded monthly. Find the amount he will have at the end of 3 years?
Answer:
The amount he will have at the end of 3 years is $3742.73
Step-by-step explanation:
* The formula for annual compound interest is:
A = P (1 + r/n)^(nt)
Where:
A = Total money after t years
P = the investment amount (the initial deposited amount)
r = the annual interest rate (decimal)
n = the number of times that interest is compounded per year
t = the number of years the money is invested
∵ P = $2860 ⇒ deposited
∵ r = 9% = 9/100 = 0.09 ⇒ annual rate
∵ n = 12 ⇒ compounded monthly
∵ t = 3 years
∴ A = 2860(1 + 0.09/12)^(12 × 3)
∴ A = 2860(1.0075)^36 = $3742.73
* The amount he will have at the end of 3 years is $3742.73
Answer:
The amount he will have at the end of 3 years = $3742
Step-by-step explanation:
Formula for compound interest
A = P[1 + R/n]^nt
A - Amount
P - Principle amount
R - rate of interest
n - Number of times in which the amount compounded
t - Number of years
To find the amount
Here,
P = $2,860, R = 9% = 0.09
n = 12 and t = 3 years
A = P[1 + R/n]^nt
=2860[1 + 0.09/12]^(12*3)
= 2860[1 + 0.0075]^36 = 3742.7257 ≈ $3742
sue has more than 5 cookies inequality
Answer:
s > 5
Step-by-step explanation:
s is the number of cookies Sue has.
Since she has more than 5 cookies, the number of cookies she has is greater than 5.
Hello there! An inequality modeling this could be x > 5.
When setting up this equation, we can use x to model the number of cookies that Sue has.
Remember that these are the symbols we use to represent inequalities:
< - greater than
> - less than
≤ - greater than or equal to
≥ - less than or equal to
Since the number of cookies Sue has is greater than 5 (but not equal to), we use the symbol.
We can represent her having x amount of cookies, which is more than 5, like this: x > 5,
I hope this helps and have a great day! :)
There are 4 red cards and 8 black cards in a bag. How likely is it that you will randomly draw a blue card?
A. Likely
B. Unlikely
C. Impossible
D. Certain
Answer:
C
Step-by-step explanation:
Since there are no blue cards, the probability that you'd draw one is 0/12, which means that there is no chance you'll draw one.
It is impossible to get blue cards. Then the correct option is C.
What is probability?Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.
Then the probability is given as,
P = (Favorable event) / (Total event)
There are 4 red cards and 8 black cards in a bag.
In the bag, the number of blue cards will be zero.
Thus, it is impossible to get blue cards. Then the correct option is C.
More about the probability link is given below.
https://brainly.com/question/795909
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solve for x {please lol}
Answer: 80
Step-by-step explanation:
Lol. So we are trying to find x, yeah?
Whatever 2 angles that are inside the triangle add up to x.
And you know a triangle adds up to 180°
So do 180 - 100 = 80°
So, x = 80°
:)
Answer:
21
Step-by-step explanation:
Find measure a and b
Answer:
162.5
Step-by-step explanation:
subtract 35 away from 180 then divide it by 2 = 162.5
Check the picture below.
recall that a flat-line has 180°.
A smartphone costs $120. Sales tax is 8%. What is the total cost, including tax?
How would I simplify and solve for X in this trigonometric equation? (Radians)
[tex]cos(x+\pi )^{2} = sinx[/tex]
Answer:
Please, refer to the images below
Step-by-step explanation:
We need to solve for x in the equation
cos (x+ pi) ^2 = sin (x)
cos (x+ pi) = - cos(x)
(-cos (x)) * (-cos (x)) = sin(x)
cos(x) ^2 = sin(x)
We know that
cos(x) ^2 + sin(x) ^2 = 1
cos(x) ^2 = 1 - sin(x) ^2
1 - sin(x) ^2 = sin(x)
sin(x) ^2 + sin (x) -1 = 0
Let A = sin(x)
A^2 + A - 1 = 0
(solutions attached in picture 1)
This means that
x = arcsin(A)
(solutions attached in picture 2)
there are 150 more passenger cars than trucks on the highway. for every 10 passenger cars there are 7 trucks. how many trucks are on the highway?
Answer:
500
Step-by-step explanation:
Given: P = 150 - T where P is passenger cars and T is trucks
10P = 7T ⇔ P = [tex]\frac{7T}{10}[/tex]
Plug in equation 2 into equation 1:
[tex]\frac{7T}{10}[/tex] = 150 - T
Solving for T, we get 500
Answer:
There would be 500 passenger cars and 350 trucks.
Step-by-step explanation:
In order to find this, we need to create a system of equations. Start by making the number of passenger cars as x and the number of trucks at y. Now the first equation can be the difference of the two.
x - y = 150
The second equation can make use of the proportion. If we multiply by the opposites we'll get the difference of 0.
7x - 10y = 0
Now we multiply the first equation by -10 and add together to solve for x.
-10x + 10y = -1500
7x - 10y = 0
-------------------
-3x = -1500
x = 500
Now we can find the amount of trucks by using either equation.
x - y = 150
500 - y = 150
-y = -350
y = 350
The base of a triangle measures 8 inches and the area is 136 square inches what is the height of the triangle
Answer:
34 inches
Step-by-step explanation:
Area is base times height time half
Then plug in the values: 136= 0.5 x 8x
Then solve for x
Answer:
4
Step-by-step explanation:
If it look like tihs for your shape it will be 4
If the local hospital has decided to follow the 1:4 nurse-to-patient ratio, how many patients can they treat if they have 120 nurses?
Answer: 480 patients
Step-by-step explanation:
If each nurse can treat for patients and there are 120 nurses, you need to multiply 120 nurses x 4 patients each.
120 x 4 = 480
120 nurses can treat 480 patients.
Consider set x={5,3,1,0} .which value of x makes 15-3x=0 true?
Answer:
x = 5
How?:
15 - 3(5) = 0
15 - (3 × 5) = 0
15 - 15 = 0
3. Find the volume of the cylinder
4. Find the volume of a cylinder with a diameter of 16mm and a height of 5.7 mm.
Answer:
[tex]3)~v=8491mm^3[/tex]
Step-by-step explanation:
3) volume of cylinder is...
v= πr²h
plug r= 13 and h=16
v=π(13)²(16)v=π(13×13)(16)v=π(169)(16) ← plug π=3.14v=3.14(2704)v=8490.56v=8491mm^3so, your answer is B
------------------------------
hope it helps...
have a great day!!
The rectangle shown is dilated by a scale factor of 4
Answer:
60 cm, 60 cm, 32 cm, 32 cm
Step-by-step explanation:
Multiply each length by the scale factor.
15 cm * 4 = 60 cm
8 cm * 4 = 32 cm
The dilated sides AB and CD will have a length of 60 cm.
The dilated sides AC and BD will have a length of 32 cm.
A right rectangular prism's edge lengths are 9 inches, 9 inches, and 3 1/3 inches. How many unit cubes with edge lengths of 1/2 inch can fit inside the prism?
ANSWER
2160 cubes
EXPLANATION
The given rectangular prism has edge lengths,
9 inches,9inches and 3⅓ inches.
The volume of this rectangular prism is
[tex]V = 9 \times 9 \times \frac{10}{3} [/tex]
[tex]V = 3 \times 9 \times 10 = 270 {in}^{3} [/tex]
A cube with unit edges of length
[tex] \frac{1}{8} [/tex]
has volume.
[tex]v = {( \frac{1}{8}) }^{3} = \frac{1}{8} [/tex]
The number of unit cubes that can go into the prism is
[tex] = \frac{270}{ \frac{1}{8} } = 2160[/tex]
Which expression shows this number in expanded form 0.624
Christopher made a scaled copy of the following trapezoid. He used a scale factor greater than 1. What could be the length of the side that corresponds with BC
a.) 1/5 units
b.) 4 units
c.)15.5 units
d.)24 units
e.)18 units
Answer:
The correct options are c, d and e.
Step-by-step explanation:
From the given graph it is clear that the length of BC is 5 units.
Christopher made a scaled copy of the following trapezoid.
1. If a the scale factor is less than 1 then the image is smaller than its original figure.
2. If a the scale factor is greater than 1 then the image is larger than its original figure.
It is given that he used a scale factor greater than 1. So, the scaled copy of the following trapezoid is larger than the given trapezoid.
The length of corresponds with BC is greater than 5.
[tex]\frac{1}{5}<5[/tex]
[tex]4<5[/tex]
[tex]15.5>5[/tex]
[tex]24>5[/tex]
[tex]18>5[/tex]
Therefore, the correct options are c, d and e.
Manny has 48 feet of wood. He wants to use all of it to create a border around a garden. The equation 2l+ 2w = 48 can be used to find the length and width of the garden, where l is the length and w is the width of the garden. If Manny makes the garden 15 feet long, how wide should the garden be?
Answer:
2W=9
Step-by-step explanation:
You must first get the Length, which is 15, and multiply it by 2 and you get 30. You then subtract 30 from 48 and get 18. Since the equation has 2W, you have to divide 18 by 2, which gets you the answer 9.
Answer:
width = 9 feet
Step-by-step explanation:
Here we are given that total length of the wood for the garden is 48 feet only.
The length in represented in the equation given below. In geometry we call it Perimeter.
2l+2w=48
Where l is the length of the garden and the w is width of the garden.
Here also given that , if Manny wants the length to be 15 feet, what will be width of the garden.
In order to find this we put the value of l as 15 in 2l+2w=48 and solve for w
Let us see how
2l+2w=48
2(15)+2w=48
30+2w=48
subtracting 30 from both sides
30+2w-30=48-30
2w=18
Dividing both sides by 2 we get
w=9
Hence the width will be 9 feet
Can you guys pls help me out
Answer:
D. $2 million
Step-by-step explanation:
make it a porportion - easier to complete the problem..
30,000 / ? = 1.5% / 100%
30,000 * 100 = 3,000,000 / 1.5% = 2,000,000
hope this helps!!
Amelia used a $50 gift card to buy digital music online after playing for 16 songs her balance on the gift card was $30 what was the price of each song assuming all songs cost the same amount
The cost of each song is $1.25.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given that, Amelia used a $50 gift card to buy digital music online after playing for 16 songs her balance on the gift card was $30.
So, the cost of 16 song is 50-30=$20
Now, the cost of each song = 20/16
= 5/4
= $1.25
Therefore, the price of each song is $1.25.
To learn more about the unitary method visit:
brainly.com/question/22056199.
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★彡 яαи∂σм qυєѕтισи #2 彡★
ωσятн 30 ρσιитѕ!
SHOW YOUR WORK! WILL MARK BRAINLIEST!
● + ● + ● = 30
● + ○ + ○ = 18
○ - ■ = 2
● + ○ + ■ = ?
Answer: 16
Step-by-step explanation: If 3 black circles equal 30, we can divide that by 3 and get 10. If 1 black circle and 2 white circles equal 18, we can subtract 10 and get left with 2 white circles worth 8, which means a white circle is 4. A white circle minus a square is 2, which means a square is 2. So we put this all together and get 16.
what is 45=m(25)+b solving for m
Answer:
[tex]\frac{45-b}{25}[/tex]
Step-by-step explanation:
given
45 = 25m + b ( isolate the term in m by subtracting b from both sides )
45 - b = 25m ← divide both sides by 25
[tex]\frac{45-b}{25}[/tex] = m
george works for a garden center where is is paid a salary of 350 per week plus a commission of 6% of the amount of merchandise that he sells. Last week his sales totaled 1,850. What was his gross pay?
Answer: His gross pay is $461.
Step-by-step explanation: George’s gross pay consists of two parts, his salary and his commission. His salary is $350, regardless of how much he sells. His commission is 6% of the $1,850 in sales that he made.
First, calculate the amount of commission = .06 x $1,850 = $111
$350 + $111 = $461
Now substitute each of these values into the correct blank space in the quadratic formula.
−(1.__)±(2.___)2−4(3.___)(4.___)√2(5.__)
1__
2.__
3.__
4.__
5.__
Question 3 (2 points)
1: -b
2:√b^2
3: -4ac
4: ÷2a
At hockey practice, Talia took 35 shots, and made 60% of them. She had hoped to make 25 shots. By how many shots did she fall short of her goal?
Answer:
4 goals short
Step-by-step explanation:
To find how many shots Talia made - multiply the total number of shots (35) by 60% (or 0.60)
35*.60 = 21 shots made
Subtract her goal (25) by the shots actually made (21)
25-21 = 4 shots from her goal
What is the probability that the roll of a six-sided die will be either even or odd?
the probability that the roll of a six-sides die will be either even or odd is 1/2 or 50%
The probability of a six-sided die will be either even or odd is 1/2.
What is the probability?The Probability in mathematics is the possibility of an event in time. In simple words, how many times that incident is happening in any given time interval.
Given:
A die is rolled once.
The sample space = {1, 2, 3, 4, 5, 6}
An even number sample space = {2, 4, 6}
Odd number sample space = {1, 3, 5}
The probability of a six-sided die will be either even or odd,
= 3/6
= 1/2
Therefore, 1/2 is the probability.
To learn more about the probability;
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