Question 784094: Elaine noticed that it took her 72 seconds to drive from one mile marker to the next. What was her speed in miles per hour? Answer by wilft1(217) (Show Source):
You can put this solution on YOUR website! 60 seconds in a minutes
60 minutes in an hour
60 x 60 = 3600 seconds
divide by 72 seconds
she was going 50 mph