algebra
posted by Jer .
Flying with the wind, a plane traveled 390 miles in 3 hours. Flying against the wind, the plane traveled the same distance in 5 hours. Find the rate of the plane in calm air and the rate of the wind. rate of plane ? mph
rate of wind ? mph

If the speed of the plane and the wind are p and w, then since distance = speed * time,
3(s+w) = 390
5(sw) = 390
s = 104
w = 26
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