SOLUTION: A car went a distance of 90 kilometers at a steady speed and returned along the same route at half that speed. The time for the round trip was 4 and a half hours. Find the two spee

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Question 879186: A car went a distance of 90 kilometers at a steady speed and returned along the same route at half that speed. The time for the round trip was 4 and a half hours. Find the two speeds

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 
Hi
Using total time for the trip in the Set Up

|Multiplying thru by 2r so as all denominators = 1
180 + 360 = 8r
67.5mph = r
67.5mph and 38.75mph
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