Asked by Harish
Makena drives 3 hours at an average speed of 45 miles per hours. Then she drives 5 hours at an average speed of 55 miles per hour. what is her average speed for the whole trip?
Answers
Answered by
Steve
avg speed = (total distance)/(total time)
(3*45 + 5*55)/(3+5)
(3*45 + 5*55)/(3+5)
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