SOLUTION: Two trains leave a depot at the same time, one traveling north at 60 mph and the other south at 50 mph. How long will it take for the trains to be 550 miles apart?

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Question 1115122: Two trains leave a depot at the same time, one traveling north at 60 mph and the other south at 50 mph. How long will it take for the trains to be 550 miles apart?
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
North is opposite south. Agree?
60 + 50 = 110 they are traveling away from each other at a combined speed of 110
550/110 = your answer in hours