SOLUTION: A plane can fly 375 mph in still air. If it can fly 220 miles downwind in the same amount of time it can fly 155 miles upwind, find the velocity of the wind. mph

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: A plane can fly 375 mph in still air. If it can fly 220 miles downwind in the same amount of time it can fly 155 miles upwind, find the velocity of the wind. mph      Log On


   

Question 1174117: A plane can fly 375 mph in still air. If it can fly 220 miles downwind in the same amount of time it can fly 155 miles upwind, find the velocity of the wind.
mph
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.

Your "time" equation is


    220%2F%28375%2Bx%29 = 155%2F%28375-x%29,


where x is the unknown under the problem's question.


Solve by cross-multiplying.