SOLUTION: A plane can fly 312 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air, and t
Question 1037342: A plane can fly 312 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air, and the speed of the wind. Found 2 solutions by josgarithmetic, Alan3354:Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
RATE TIME DISTANCE
WITH r+w 3 312
AGAINST r-w 4 312
Solve the LINEAR system for r and w.
Algebra steps:
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. Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website! A plane can fly 312 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air, and the speed of the wind.
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Find the 2 groundspeeds, downwind and upwind.
The plane's airspeed is the average of the 2.
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Windspeed is the difference between groundspeed and airspeed.