SOLUTION: An airplane can fly 650 mph in still air. If it can travel 2800 miles with the wind in the same time it can travel 2400 miles against the wind, find the wind speed.
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: An airplane can fly 650 mph in still air. If it can travel 2800 miles with the wind in the same time it can travel 2400 miles against the wind, find the wind speed.
Log On
Question 1153778: An airplane can fly 650 mph in still air. If it can travel 2800 miles with the wind in the same time it can travel 2400 miles against the wind, find the wind speed. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! An airplane can fly 650 mph in still air. If it can travel 2800 miles with the wind in the same time it can travel 2400 miles against the wind, find the wind speed.
--------------
a = plane's airspeed = 650
w = windspeed
----
t = 2800/(650+w) = 2400/(650-w)
2800*(650-w) = 2400*(650+w)
7*(650-w) = 6*(650+w)
4550 - 7w = 3900 + 6w
13w = 650
w = 50
