SOLUTION: Two cars leave a town and travel in opposite directions. The first car is traveling at 45mpm, the second car is traveling at 55 mph. In how many hours will they be 300 miles apart?

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Question 328201: Two cars leave a town and travel in opposite directions. The first car is traveling at 45mpm, the second car is traveling at 55 mph. In how many hours will they be 300 miles apart? If could help with formula also Thank you very much
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
If you mean 55 mph not mpm.
D=RT
300=(45+55)T
300=100t
t=300/100
t=3 hours they will be 300 miles apart.