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Mathematics 30 Online
OpenStudy (anonymous):

i am on sets of equations. this is my word problem. computing wind speed. the average airspeed of a plane is 150 mph. the plane flew same distance in 2 hours with the wind as it flew in 3 hours against the wind. what is the wind speed?

OpenStudy (anonymous):

V_plane=150mph; (V_plane+V_wind)*2=(V_plane-V_wind)*3 => V_plane=5*V_wind => V_wind=V_plane/5=30MPH

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