SOLUTION: at maximum speed, an airplane travels 2100 miles against the wind in 6 hours. Flying with the wind, the plane can travel the same distance in 4 hours. Let x be the maximum speed of

Question 448583: at maximum speed, an airplane travels 2100 miles against the wind in 6 hours. Flying with the wind, the plane can travel the same distance in 4 hours. Let x be the maximum speed of the plane and y be the speed of the wind. What is the speed of the plane with no wind?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

Let x be the maximum speed of the plane and y be the speed of the wind

Question states*** Note: D = r*t  or r = D/t

x +y = 525mph   |2100mi/4hr = 525mph

x -y = 350mph   |2100mi/6hr = 350mph

  2x = 875

   x = 437.5mph, speed of plane.  Wind speed is 87.5 

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