SOLUTION: A runner decides to run out in the country. He begins to run at an average rate of 9 miles per hour. He runs a certain distance and then turns around and returns along the same rou

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Question 37890: A runner decides to run out in the country. He begins to run at an average rate of 9 miles per hour. He runs a certain distance and then turns around and returns along the same route at an average rate of 6 minutes per hour. If the round trip took 2 and a half hours, how far did the runner travel before turning around?
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
x/9+x/6=2.5 or (6x+9x)=2.5*54 or 15x=135 or x=135/15 or x=9 miles thus
9/9=1 hour & 9/6=1.5 hours thus 1+1.5=2.5 hours round trip.