A plane flies 2400 miles in 6 hours, with a tailwind all the way. The return trip on the same route, now with a headwind, takes 8 hours. Assuming both remain constant, find the speed of the plane and the speed of the wind. (hint if x is the planes speed and y the wind speed in mph then the plane travels to its distance at x+y mph because the plane and the wind go in the same direction; on the return trip the plane travels at x-y mph)