February 21, 2017

Homework Help: math

Posted by Ashley on Wednesday, December 2, 2009 at 10:21pm.

A traveler travels on a highway 80 miles at 55 miles per hour, he then travels back on the same highway at 45 miles per hour. What was his average rate of speed. (Hint: it's not 50 miles per hour)

If it's not 50, i'm so confused!!! Please help!!! (and please show me how you did it!)

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