Acircular running track 1/4 is mile long. elena runs on this track, completing each lap in 1/20 of an hour. elena's running speed? include the unit of measure.

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 :)

abde or 1,2,4, 5 is the answer

step-by-step explanation:

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step-by-step explanation: