SOLUTION: Two cars left St.Louis at the same time. One car traveled east at 60 miles per hour and the other went west at 50 miles per hour. How long will it take for the two cars to be 715 m

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Question 720265: Two cars left St.Louis at the same time. One car traveled east at 60 miles per hour and the other went west at 50 miles per hour. How long will it take for the two cars to be 715 miles apart?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
715=(60T)+(50T)
715=110T
T=715/110
T=6.5 HOURS ANS.
715=60*6.5+50*6.5
715=390+325
715=715