SOLUTION: Two cars leave St. Louis from exactly the same spot at exactly the same time, one traveling west at 60 mph and the other traveling east at 40 mph. How long does it take before the

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Question 265151: Two cars leave St. Louis from exactly the same spot at exactly the same time, one traveling west at 60 mph and the other traveling east at 40 mph. How long does it take before the cars are 180 miles apart?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
180=(40+60)T
180=100T
T=180/100
T=1.8 HOURS THEY'LL BE 180 MILES APART..