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21 August, 14:23

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Jim began a 219-mile bicycle trip to build up stamina for a triathlon

competition. Unfortunately, his bicycle chain broke, so he finished the

trip walking. The whole trip took 8 hours. If Jim walks at a rate of 4

miles per hour and rides at 38 miles per hour, find the amount of time

he spent on the bicycle.

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Answers (1)
  1. 21 August, 14:38
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    The total is 219 miles.

    He rides at 38 mph and walks at 4 mph for 8 hours. If he rides for h hours, he walks for 8-h hours.

    Set them equal to each other:

    219=38h+4 (8-h)

    Solve and you should get 5.5 hours on the bicycle and 2.5 hours walking.
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