SOLUTION: 2 trains 360 miles apart, their speeds differ by 20mph. What speed is each train traveling for them to meet in three hours. Need to know how to set this up thanks

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Question 353279: 2 trains 360 miles apart, their speeds differ by 20mph. What speed is each train traveling for them to meet in three hours. Need to know how to set this up thanks
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Rate*Time=Distance
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.
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R%5B1%5D%2At=D%5B1%5D
R%5B2%5D%2At=D%5B2%5D
You also know that,
t=3
R%5B2%5D=R%5B1%5D%2B20
.
.
D%5B1%5D%2BD%5B2%5D=360
Substitute for D%5B1%5D and D%5B2%5D with known value and only R%5B1%5D as a variable.
Then solve for R%5B1%5D and then go back and find R%5B2%5D.