SOLUTION: Two cars start from the same point and travel in opposite directions. One car is going 65mph and the other is going 70mph. If both cars left at 9:00am, at what time will they be 54

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Question 671840: Two cars start from the same point and travel in opposite directions. One car is going 65mph and the other is going 70mph. If both cars left at 9:00am, at what time will they be 540 miles apart?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

D = rt

 65t + 70t = 540

    t(65+70) = 540mi

     t = 540mi/135mph = 4hr

If both cars left at 9:00am, at what time will they be 540 miles apart? 1:00pm