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3 years ago

Inessa ran 3 laps in 8 minutes. How long would it take her to run 10 laps at this pace?

Mathematics

1 answer:

iris [78.8K]3 years ago

6 0

Answer:

$26.27$ minutes

Step-by-step explanation:

We can us rule of three to solve this problem.

We have that 3 laps are done in 8 minutes, and we want to know how much time it will take to run 10 laps:

laps minutes

3 ----------->8

10-----------> $x$

To find the value of x we do as follows:

$x=\frac{8*10}{3} =26.27$ minutes

we cross multiply the values, and divide by the remaining value, thus we have the time it takes to run 10 laps is 26.27 minutes

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Answer:

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Step-by-step explanation:

Let h be the height of the roof.

We know the formula

$v^2-u^2=2gh$

Since, the stone is dropped from the edge of the roof hence, the initial velocity should be zero. Thus, u = 0

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Now, we have

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On substituting these values, we get

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