SOLUTION: Plane X leaves airport 1 and heads for airport 2 which is a distance of 2,700 km. At the same time, plane Y leaves airport 2 and heads for airport 1. Due to headwinds and tailwinds

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Plane X leaves airport 1 and heads for airport 2 which is a distance of 2,700 km. At the same time, plane Y leaves airport 2 and heads for airport 1. Due to headwinds and tailwinds      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 330052: Plane X leaves airport 1 and heads for airport 2 which is a distance of 2,700 km. At the same time, plane Y leaves airport 2 and heads for airport 1. Due to headwinds and tailwinds, Plane X's average speed is 100 kph greater than that of plane Y. If the two planes pass each other after 3 hours, find the speed of each plane.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
they close the distance of 2700 km in 3 hr , so the sum of their speeds is 2700/3 or 900 kph

X + Y = 900 ___ and ___ X = Y + 100

substitute to solve the system