SOLUTION: If a plane can travel 470 miles per hour with the wind and 430 miles per hour against the wind, find the speed of the plane in still air.

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Question 1004392: If a plane can travel 470 miles per hour with the wind and 430 miles per hour against the wind, find the speed of the plane in still air.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If those are the groundspeeds, the plane's airspeed is the average of the 2.