Question 895698
A plane traveled 644 miles to Austin and back. The trip there was with the wind. It took 7 hours. the trip back was into the wind. The trip took 14 hours. What is the speed of the plane in still air? What is the speed of the wind?
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Use d = r*t --> r = d/t to find the 2 groundspeeds.
The plane's airspeed is the average of them.
The windspeed is the difference between airspeed and groundspeed.