Question

A marathon runner travels 7/4 of a mile in 1/4 hour. What is the runner's unit rate?

Answer 1

The runner's unit rate is: 7 mph

Explanation:

The runner's unit rate is the speed of the runner used to cover a mile in one hour

Given that ;

1/4 hours covers 7/4 miles

so;

1/4 = 7/4

1 =?

Perform cross product as;

(1*7/4) / 1/4

(7/4) / (1/4)

7/4 * 4/1

7 miles/hour