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yeah ask ur qus first
An airplane flew 3.5 hours with a 60 mph head wind. The return trip with a tail wind of the same speed took 2.5 hours. Find the speed of the plane in still air.
60 mph is the speed of the plane alone or after adding the speed of wind
i don't know that's the question it gave me. and the answers can be 320 mph 340 mph 360 mph 380 mph
ok about to solve wait little
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360 mph
is it ok for u...!!
Let s be the speed of the plane in still air. r * t = d Solve the following for s.\[\left(\frac{35}{10}\right)*(s-60)\text{==}\left(\frac{25}{10}\right)*(s+60) \]\[s=360 \text{ mph}\]
Fractions were used so that the symbolic answer was exact. (no decimal point)
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