SOLUTION: A plane with a tail wind makes its 785-mile flight in 2.5 hours. The return flight against the wind takes a half hour longer. What is the wind speed (rounded to the nearest mil

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A plane with a tail wind makes its 785-mile flight in 2.5 hours. The return flight against the wind takes a half hour longer. What is the wind speed (rounded to the nearest mil      Log On


   

Question 330362: A plane with a tail wind makes its 785-mile flight in 2.5 hours. The return flight against the wind takes a half hour longer. What is the wind speed (rounded to the nearest mile per hour)?

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
p + w = 785 / 2.5

p - w = 785 / 3

subtracting equations ___ 2w = (785 / 2.5) - (785 / 3)