Question

A biker traveled 20 miles in 4 hours. A unit rate to describe this would be 5 miles per hour. What is another unit rate in this situation?

1. 1/5 mile per hour
2. 1/5 hour per mile
3. 1 mile per hour
4. 5 hours per mile

Answer 1

20 miles) / (4 hours) = (20/4) (miles/hours) = 5 miles per hour

(4 hours) / (20 miles) = (4/20) (hours/miles) = 0.2 hours per mile =

12 minutes per mile