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 1115130: 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 Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: opposite directions --> add the speeds