Question 626530: a small airplane traveled 170 mph with a tailwind and 130 with a headwind. find the speed of the wind and of the airplane in still air Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! a small airplane traveled 170 mph with a tailwind and 130 with a headwind. find the speed of the wind and of the airplane in still air
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let x=speed of plane in still air
let c=speed of wind
x+c=speed of plane with tailwind=170
x-c=speed of plane with headwind=130
x+c=170
x-c=130
add
2x=300
x=150
c=170-x=20
speed of plane in still air=150 mph
speed of wind=20 mph
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