SOLUTION: If a plane can travel 470 miles per hour with the wind and 390 miles per hour against the wind, find the speed of the wind in still air.

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Question 295591: If a plane can travel 470 miles per hour with the wind and 390 miles per hour against the wind, find the speed of the wind in still air.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
470-390=80
80/2=40
The wind is 40 mph
What does find the speed of the wind in still air mean? The wind is not still air!
Do you mean find the speed of the wind or find the speed of the plane in still air? Try reading your post before clicking submit.
470-40=430
390+40=430
The plane in still air goes 430 mph