SOLUTION: I need help on this problem. Can't seem to set it up correctly. "Against the wind a small plane flew 715 miles in 2 hours and 10 minutes. The return trip took only 1 hour and 50 mi

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Question 667291: I need help on this problem. Can't seem to set it up correctly. "Against the wind a small plane flew 715 miles in 2 hours and 10 minutes. The return trip took only 1 hour and 50 minutes. What was the speed of wind? What was the speed of the plane in still air?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 velocity = velocity = D/t  (am going to express time in minutes)

 v - w = 715/130 = 5.5

 v + w = 715/110 = 6.5

 2v = 12

  v = 6mi/min  and w = .5mi/min

0r

 v = 360mph and w = 30mph