SOLUTION: An airplane flying against the wind travels 300 miles in the same time that it can travel 330 miles with the wind. If the wind speed is 10 mph, what is the speed of the airplane in

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: An airplane flying against the wind travels 300 miles in the same time that it can travel 330 miles with the wind. If the wind speed is 10 mph, what is the speed of the airplane in      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 583662: An airplane flying against the wind travels 300 miles in the same time that it can travel 330 miles with the wind. If the wind speed is 10 mph, what is the speed of the airplane in still air?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=d
(r-10)*t=300
t=300/(r-10)
(r+10)*t=330
t=330/(r+10)
300/(r-10)=330/(r+10)
r=210