SOLUTION: an airplane flew for 3 hours with a tailwind of 18 kilometers per hour. The return flight against the win took 4 hours. Find the rate of the plane in still air.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: an airplane flew for 3 hours with a tailwind of 18 kilometers per hour. The return flight against the win took 4 hours. Find the rate of the plane in still air.       Log On


   

Question 401470: an airplane flew for 3 hours with a tailwind of 18 kilometers per hour. The return flight against the win took 4 hours. Find the rate of the plane in still air.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
r * t = d ___ the distances are equal

3(p + 18) = 4(p - 18)