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a plane traveled 580 miles to chicago and back. the trip there was with the wind. it took 5 hours. the trip back was into the wind. the trip back took 10 hours. find the speed of the plane in still air and the speed of the wind.

Respuesta :

If the speed in still air is s, and the wind speed is w,

580/(s+w) = 5

580/(s-w) = 10

s=87

w=29

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