Question

A circular running track is 1/4 mile long. Brie runs on this track, completing each lap in 1/20 of an hour. What is Brie's running speed? Include the unit of measure.
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5 hours per lap

4 miles per hour

5 miles per hour

1/5 lap per hour

Answer 1

Answer:

number 3

Step-by-step explanation:

Answer 2

Answer:5 miles per hour

Step-by-step 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