Question

One lap around a track is 1/4 mile. It takes Parker 1/20 hour to sprint

one lap. What is Parker's unit rate, in miles, around the track

Answer 1

Parker's unit rate is 5 miles per hour or 5mph.

Explanation:

1 hour = 60 minutes

60/20 = 3 minutes

3 minutes for 1 lap

1 lap = 1/4 mile

1/4 mile (1 lap) x 4 laps = 1 mile

4 laps = 12 minutes

12 minutes per mile

60/12 = 5

5 miles per hour