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
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Question 553302: 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? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! east plane speed =x
west plane speed = 2x
they are moving away from each other.
add up speeds = 2x+x=3x
d= rt
d= 2700
r= 3x
t=3 hours
2700 = 3x*3
2700/9 =x
x=300
east plane 300 mph
west plane 600 mph
