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Hatshy [7]
3 years ago
12

Find the value of each variable ​

Mathematics
1 answer:
yanalaym [24]3 years ago
7 0

Answer:

i think teh value of each variable is 45.

Step-by-step explanation:

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There are 550 people at the school carnival.
Svet_ta [14]

Answer:

70% of the people at the fair are students

165 people are on the ride

Step-by-step explanation:

In order to find a percentage, take the fraction given, 385/550, and divide the numerator, 385, and divide it by the denominator, 550. Once completing this, we get 0.7

Next, we multiply the result by 100, and get 70, thus, 385 is 70% of 550.

To find how many people 30% of 550 is, we take the percentage and put it in a fraction with the denominator being 100(changes with size of fraction like a decimal, 300 would be over a denominator of 1000)

With 30/100, we then multiply by 550 with the equation looking like this:

30/100*550/1

Once we finish multiplying(typically using a calculator, although you can do it manually) we get 165, the value of how many people are on rides out of the total 550.

4 0
3 years ago
What is the slope of a graph?​
e-lub [12.9K]

Answer:

Image result for what is the slope of a graph?​

The slope of a line is rise over run. Learn how to calculate the slope of the line in a graph by finding the change in y and the change in x.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The price of a pair of shoes was reduced from $20 to $14
sdas [7]

Answer: D 30%

Step-by-step explanation:amount change/amount start x 100%

(20-14)/20=.3

.3 x 100% = 30%

3 0
2 years ago
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What is the equation of a line that has a slope of −12 and a y-intercept of 3? Express your answer in slope-intercept form.
Elena L [17]

If given the slope and y-intercept, you can directly get the slope intercept form as

y = -12x + 3

6 0
3 years ago
A cylindrical soup can has a radius of 1.2 in. and is 6 in. tall. What's the volume?
Sergio [31]

Answer:

Volume= 27. 12inches³

Step-by-step explanation:

to solve this question lets write out the parameters given

radius of the cylinder  = 1.2 inches

height of the cylinder = 6 inches

volume of the cylinder = ?

<u>solution</u>

the fomular to find the volume of a cylinder is given to  be

Volume= πr²h

Volume= 3.14 × ( 1.2)² × 6

Volume= 3.14 × 1.44 × 6

Volume= 27. 12inches³

therefore the volume of the cylinder equals to 27. 12inches³

7 0
3 years ago
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