Question

Please answer this for 15 points :) <333

Answer 1

A.

Elena can run 3 miles per hour.

Explanation:

Given that:

a circular running track = 1/5 mile

On this track, Elena runs completing each of the laps in 1/15 of an hour

We are to find Elena running speed.

It implies that the distance of Elena =
`(1)/(5)`

Time to run each lap =
`(1)/(15) \ of \ an \ hour`

Speed is the amount of distance covered in a specified period of time.

Recall that the formula for calculating speed is:

`Speed = (distance)/(time)`

`Speed = ((1)/(5))/((1)/(15))`

`Speed ={(1)/(5)* (15)/(1)`

Speed = 3miles / hour

As such, Elena can run 3 miles each hour.