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math help?
Against the wind a small plane flew 175 miles in 1 hour and 10 minutes.The return trip took only nothing 50 minutes. What was the speed of the wind? What was the speed of the plane in still air?
3 Answers
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- ?Lv 74 years ago
x = plane
y = wind
speed = distance/time in mph
x-y = 175/(7/6) = 150
x+y = 175/(5/6) = 210
2x = 360
x = 180
2y = 60
y = 30
x = 180 mph plane
y = 30 mph wind
x-y = 150
x+y = 210
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