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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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Respuesta :

legoboy75

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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