SOLUTION: If a plane can fly 480 mph with the wind and 400 mph against the wind. What is the speed of the plane in still air?
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Question 1016840: If a plane can fly 480 mph with the wind and 400 mph against the wind. What is the speed of the plane in still air?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
= speed of the plane in still air, in mph;
= wind speed, in mph.
Then,
= speed of the plane with the wind, in mph, and
= speed of the plane against the wind, in mph.
Adding up both equations, we get
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