SOLUTION: An airliner flies against the wind on one leg of its round trip in 7.5 hours. It flies back to its starting point, with the wind in 7 hours. If the average speed of the wind is 15

Question 1197865: An airliner flies against the wind on one leg of its round trip in 7.5 hours. It flies back to its starting point, with the wind in 7 hours. If the average speed of the wind is 15 miles per hour, what is the speed of the airliner in still air?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi  
D = rt (Distance the same or equal  to and from)
 Question States:
  (v - 15mph)(7.5hr) =  (v + 15mph)(7hr)
          .5v = 14.5*15
            v = 435mph
Checking:  420mph*7.5h = 450mph*7h = 3150mi  Checks
Wish You the Best in your Studies.

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