SOLUTION: an airplane flew with the wind for 2.5 hours and returned the same distance against the wind in 3.5 hours. if the engine speed of the plane was a constant 360 mph in air, how fast
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Question 523968: an airplane flew with the wind for 2.5 hours and returned the same distance against the wind in 3.5 hours. if the engine speed of the plane was a constant 360 mph in air, how fast was the wind blowing? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! an airplane flew with the wind for 2.5 hours and returned the same distance against the wind in 3.5 hours. if the engine speed of the plane was a constant 360 mph in air, how fast was the wind blowing?
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1st I've heard of "engine speed"
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d = r*t
a = airspeed, w = windspeed
d = 2.5*(a + w) = 3.5*(a - w)
2.5*(360 + w) = 3.5*(360 - w)
900 + 2.5w = 1260 - 3.5w
6w = 360
w = 60 mi/hr
