pre-algebra word problem

Question

A runner ran at a rate of 3.2 miles per hour. Find the runner's exact rate, in feet per minute.

1 mile = 5,280 feet

Answer 1

If the runner runs 3.2 miles an hour and one mile is equivalent to 5,280 feet we would want to multiply 5,280 by 3.2. This will give you 16,896 feet per hour. Now that we have this number, we are gonna wanna divide that by 60 (the number of minutes in an hour). 16,896÷60=281.6. This means the runner's rate in feet per minute is 281.6 feet per minute.

Answer 2

Set up an equivalent fraction 1mile/5280ft.=3.2mile/xft. cross multiply then convert the feet per hour into feet per minute (1hour=60 min.) Hope this helps.