Math
posted by Adam .
A plane that can fly 275 mph in still air for 3 hours against a wind and for 2 hours with the same wind. The total distance it covers is 1300 miles. Find the rate of the wind.

Let w be the rate of the wind.
Use d = r * t (distance = rate * time).
For "against the wind," you must subtract w. The opposite goes for "with the wind."
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