SOLUTION: Kylie went on a 126 mile trip to a soccer game. On the way back, due to road construction she had to drive 21 miles per hour slower. This made the trip take 1 hour longer. How fast

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Question 1138433: Kylie went on a 126 mile trip to a soccer game. On the way back, due to road construction she had to drive 21 miles per hour slower. This made the trip take 1 hour longer. How fast did she drive to the soccer game?
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
                      SPEED       TIME             DISTANCE

GOING                   r           126/r            126

RETURN                 r-21        126/(r-21)        126

DIFFERENCE                           1








two factors differ by 21


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