SOLUTION: if there are two ships going opposite directions, one 30 mph the other 40 mph how long before they are 350 miles apart?

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Question 378022: if there are two ships going opposite directions, one 30 mph the other 40 mph how long before they are 350 miles apart?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
It depends on the starting points. They might have started 500 miles apart.