I run 12 miles in 90 minutes. What is my average speed in miles per hour?
First convert 90 minutes to hours: 90 minutes / 60 minutes/hours = <T>divide(90, 60)=1.5 hours.
In 1 hour, I run 12 miles / 1.5 hours = <T>divide(12, 1.5)=8.0 miles/hour.
