Question 1192916
When a plane flies with the​ wind, it can travel 1680  miles in 4 hours. When the plane flies in the opposite​ direction, against the​ wind, it takes 5 hours to fly the same distance. Find the rate of the plane in still air and the rate of the wind.


The rate of the wind is ____ miles per hour.
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Find the 2 groundspeeds, downwind and upwind.
The plane's airspeed is the average of the 2.
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Windspeed = difference between airspeed and groundspeed.