SOLUTION: A plane flies 425 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 15mph, find the speed of the plane in still air

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Question 806666: A plane flies 425 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 15mph, find the speed of the plane in still air
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(s+15)*t=425,
(s-15)*t=350
t = 5/2, s = 155 mph in still air