SOLUTION: Two cars leave Fort Collins, CO at 4 pm traveling south . ONE car is traveling 8 MPH faster than the other car . AT 9 pm the two cars have traveled a total of 600 miles . What is t

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Two cars leave Fort Collins, CO at 4 pm traveling south . ONE car is traveling 8 MPH faster than the other car . AT 9 pm the two cars have traveled a total of 600 miles . What is t      Log On

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Question 1085596: Two cars leave Fort Collins, CO at 4 pm traveling south . ONE car is traveling 8 MPH faster than the other car . AT 9 pm the two cars have traveled a total of 600 miles . What is the speed of the slower car?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Car 1: D%5B1%5D=R%5B1%5D%2At
Car 2: D%5B2%5D=%28R%5B1%5D%2B8%29%2At
So at 9pm, t=9-4=5,
D%5B1%5D%2BD%5B2%5D=600
R%5B1%5D%2A5%2B%28R%5B1%5D%2B8%29%2A5=600
R%5B1%5D%2BR%5B1%5D%2B8=120
2R%5B1%5D=112
R%5B1%5D=56mph