SOLUTION: two planes left an airport at noon. one flew east at a certain speed and the other flew west at twice the speed. the planes were 2700 mi apart in 3 h. how fast was each plane flyin

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: two planes left an airport at noon. one flew east at a certain speed and the other flew west at twice the speed. the planes were 2700 mi apart in 3 h. how fast was each plane flyin      Log On


   

Question 94091This question is from textbook algebra 2
: two planes left an airport at noon. one flew east at a certain speed and the other flew west at twice the speed. the planes were 2700 mi apart in 3 h. how fast was each plane flying? This question is from textbook algebra 2

Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
3X+3X*2=2700
3X+6X=2700
9X=2700
X=2700/9
X=300 MPH FOR THE SLOWER PLANE
2X=600 FOR THE FASTER PLANE
PROOF
3*300+6*300=2700
900+1800=2700
2700=2700