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A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an hour.What is Elena’s running speed? Explain your thinking

Respuesta :

Answer:

Step-by-step explanation:

Answer:

Elena's running speed is 5 miles/hour

Explanation:

The speed is defined as the covered distance per unit time

In the problem, we have:

The distance covered is the length (circumference) of the circular track which is given as  of a mile.

We are also given that she completes each lap (she completes  of a mile) in  of an hour

To get her speed, we will divide the distance covered by the time taken to cover this distance

This is done as follows:

speed =  miles/hour

This means that:

Elena can run 5 miles each hour

Hope this helps :)