SOLUTION: plane flies 490 mi. with the wind and 350 mi. agaisnt the wind in the same length of time. speed of wind 22 mph, what is speed of plane in still air?
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Question 440440: plane flies 490 mi. with the wind and 350 mi. agaisnt the wind in the same length of time. speed of wind 22 mph, what is speed of plane in still air?
Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
(x+22)*t=490
(x-22)*t=350
490/(x+22)=350/(x-22)
x=132 no wind
132+22=154 with the wind
132-22=110 against the wind
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