SOLUTION: A car travels an average speed of 70 miles per hour, on the way back the average speed was 60 miles an hour and took an half hour longer how far did she drive each way.
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Question 620597: A car travels an average speed of 70 miles per hour, on the way back the average speed was 60 miles an hour and took an half hour longer how far did she drive each way. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A car travels an average speed of 70 miles per hour, on the way back the average speed was 60 miles an hour and took an half hour longer how far did she drive each way.
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d = r*t
d = 70t = 60*(t + 0.5)
70t = 60t + 30
t = 3 hours
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70*3 = 210 miles
