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How would I set up the problem "Two trains Leave a stations at 10:00am heading in opposite directions. One train is going 80mph and the other 90mph. At what time will the trains be 425 miles apart?"
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How would I set up the problem "Two trains Leave a stations at 10:00am heading in opposite directions. One train is going 80mph and the other 90mph. At what time will the trains be 425 miles apart?"

User Nuke
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1 Answer

4 votes
Distance = rate x time
425 miles = (80mph + 90mph) x Time (t)
425 = 170t
t = 2.5 hours

You are trying to solve for time (t)

Therefore, 10am + 2.5 hours = 12:30pm

User Robert Elwell
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