SOLUTION: A helicopter flies 264 miles against the wind in 2 hours; with the wind, it can fly 396 miles in the same amount of time. Find the speed of the helicopter in still air.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A helicopter flies 264 miles against the wind in 2 hours; with the wind, it can fly 396 miles in the same amount of time. Find the speed of the helicopter in still air.      Log On


   

Question 908822: A helicopter flies 264 miles against the wind in 2 hours; with the wind, it can fly 396 miles in the same amount of time. Find the speed of the helicopter in still air.
Answer by KlambinRonsentaswer(36) About Me  (Show Source):
You can put this solution on YOUR website!
I'm glad to help you. I am a Chinese student and I think there's something different between our classes. :)
let the speed of the helicopter in still air = x
let the wind speed = y

then you can get a linear equation of two unknowns.
2·(x-y)=264 [upwind flight distance ]
2·(x+y)=396 [downwind flight distance]
then solve it.
Okay.