SOLUTION: A plane flew 720 miles in 3 hours with a tailwind. It would take 4 hours to travel the same distance with a headwind. Find the speed of the plane in still air and speed of wind.

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: A plane flew 720 miles in 3 hours with a tailwind. It would take 4 hours to travel the same distance with a headwind. Find the speed of the plane in still air and speed of wind.      Log On


   



Question 433025: A plane flew 720 miles in 3 hours with a tailwind. It would take 4 hours to travel the same distance with a headwind. Find the speed of the plane in still air and speed of wind.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
720/3 = 240 mph
720/4 = 180 mph
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The airspeed is the average (240 + 180)/2 = 210 mph
The windspeed is the difference = 30 mph