algebraword problem
posted by jen .
Flying to Kampala with a tailwind a plane averaged 158 km/h. On the return trip the plane only
averaged 112 km/h while flying back into the same wind. Find the speed of the wind and the speed of
the plane in still air.
TIA

speed out = 158 = v+w
speed back = 112 = vw
add the two equations
2 v = 270
v = 135
w = 158  135 = 23
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