SOLUTION: Driving to Michigan State University, Tiffany drove 53 mph for 2 hours and then drove 67 mph for 5 hours. What is Tiffany's average rate of speed, in mph, for her trip?

Question 831195: Driving to Michigan State University, Tiffany drove 53 mph for 2 hours and then drove 67 mph for 5 hours. What is Tiffany's average rate of speed, in mph, for her trip?
Answer by wth12345(3) (Show Source): You can put this solution on YOUR website!
53/2 for the first mph which is 26.5mph
67/5 for the second mph which is 13.4mph
Asking for a average would be 26.5+13.4 which is 39.9 which than you divide considering there asking for the average which would be 39.9/7 which =5.7mph
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