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16 August, 05:40

Pierce drove to Allentown to baker, averaging 55 miles per hour. His journey back to Allentown using the same route took 3 hours longer because he averaged only 40 miles per hour. How long did it take him to drive to Allentown to baker? What is the distance between Allentown and baker?

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  1. 16 August, 05:55
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    This problem can be solved using the formula

    D = rt

    Where d is the distance

    R is the speed

    T is the time

    Then establish the two equation

    D = 50t

    D = 40 (t+3)

    Equating the two quations

    50t = 40 (t+3)

    T = 12 hrs he took to drive from alentown to baker

    D = 50x12 = 600 miles
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