SOLUTION: Mitch Levy flew his airplane 500 mi against the wind in the same time it took him to fly 600 mi with the wind. If the speed of the wind was 10 mph, what was the speed of his plane

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Question 439794: Mitch Levy flew his airplane 500 mi against the wind in the same time it took him to fly 600 mi with the wind. If the speed of the wind was 10 mph, what was the speed of his plane in still air? (Let x= speed of the plane in still air.)
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
500/x-10=600/x+10
500(x+10)=600(x-10)
500x+5000=600x-6000
11000=100x
110=x
The speed of his plane in still air is 110mph..