SOLUTION: Two trains are 600 miles apart, and their speeds differ by 20miles per hour. Find the speed of each train if they are traveling towards each other and will meet in three hours? I

Question 702675: Two trains are 600 miles apart, and their speeds differ by 20miles per hour. Find the speed of each train if they are traveling towards each other and will meet in three hours? I know the answers are 90 and 110, I just can't figure out the equation or how to get the answer.
R. T. = D
A- x. . 3 = 3x

B.(x-20). 3 = 3(-20)
D = 600
I can't figure out what I'm doing wrong? I'm having a hard time with this chapter on how to set the problems up.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Two trains are 600 miles apart, and their speeds differ by 20miles per hour. Find the speed of each train if they are traveling towards each other and will meet in three hours? I know the answers are 90 and 110, I just can't figure out the equation or how to get the answer.
Let x = speed of slower train
then
x+20 = speed of faster train
.
3(x + x+20) = 600
x + x+20 = 200
2x+20 = 200
2x = 180
x = 90 mph (slower train)
.
Faster train:
x+20 = 90+20 = 110 mph

RELATED QUESTIONS
Two trains are 330 miles apart, and their speeds differ by 20 mph. Find the speed of each (answered by stanbon)

Two trains are 212 miles apart, and their speeds differ by 20 mph. Find the speed of each (answered by ankor@dixie-net.com)

Two trains are 444 miles apart, and their speeds differ by 15 mph. Find the speed of each (answered by solver91311)

Two trains are 351 miles apart, and their speeds differ by 21 mph. Find the speed of each (answered by josmiceli)

Two trains are 318 miles apart, and their speeds differ by 24 mph. Find the speed of each (answered by lwsshak3)

Two trains are 339 miles apart, and their speeds differ by 25 mph. Find the speed of each (answered by josmiceli)

Two trains are 345 miles apart, and their speeds differ by 23 mph. Find the speed of each (answered by richwmiller)

Two trains are 440 miles apart, and their speeds differ by 16 mph. Find the speed of each (answered by macston)

Two trains are 440 miles apart, and their speeds differ by 12 mph. Find the speed of each (answered by josgarithmetic,ikleyn)