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A small Plane can travel 120 mph in still air. The plain can fly 700 miles with the wind in the same that it can travel 500 miles against the wind. Find the speed of the wind.

 Feb 2, 2020
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700/(120+w) =500/(120-w), solve for w

 

w = 20 mph - speed of the wind.

 Feb 2, 2020

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