SOLUTION: Two trains leave the station at the same time going in opposite directions. One of the trains travels at 90 mph and the other is traveling at 120 mph. After how many hours will the

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Question 713589: Two trains leave the station at the same time going in opposite directions. One of the trains travels at 90 mph and the other is traveling at 120 mph. After how many hours will they be 735 miles apart?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
D=90T
D=120T
735=90T+120T
735=210T
T=735/210
T=3.5 HOURS ANS.