SOLUTION: Maggie started biking to the mall traveling 13 mph, after some time the bike got a flat so Maggie walked the rest of the way, traveling 4 mph. If the total trip to the mall took 7

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Question 1072084: Maggie started biking to the mall traveling 13 mph, after some time the bike got a flat so Maggie walked the rest of the way, traveling 4 mph. If the total trip to the mall took 7 hours and it was 64 miles away, how long did Maggie travel at each speed?
__________________ hours at 13 mph
__________________ hours at 4 mph
Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
                    SPEED      TIME      DISTANCE
BIKE                 13         x          13x
WALK                  4        7-x        4(7-x)
Total                           7          64

13x%2B4%287-x%29=64, starting equation


13x%2B28-4x=64
9x=64-28
9x=36
highlight%28x=4%29-----hours on bicycle
7-4=highlight%283%29------hours walked