Answer: The plane is flying at 990 miles per hour and the wind is blowing at 190 miles per hour.
Step-by-step explanation: 1. Start by setting up the equations.
3200 = 4(x-y)
9440 = 8(x+y)
2. Simplify them by dividing the first one by 4 and the second one by 8. This gives you:
800 = x-y
1180 = x+7
3. Adding these equations together, you get
1980 = 2x.
4. Then divide, and x, the plane's speed, is 990 mph.
5. Replace x with 990 in one of the above equations and you get y of 190 mph for the wind speed.
