SOLUTION: Jake drives a tractor from one town to another, a distance of 180 kilometers. He drives 6 kilometers per hour faster on the return trip, cutting 1 hour off the time. How fast does

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Question 1199916: Jake drives a tractor from one town to another, a distance of 180 kilometers. He drives 6 kilometers per hour faster on the return trip, cutting 1 hour off the time. How fast does he drive each way?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
              SPEED         TIME              DISTANCE

GOING           r           180/r               180

RETURN         r+6          180/(r+6)           180

DIFF.                        1

180%2Fr-180%2F%28r%2B6%29=1
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