SOLUTION: At exacthy 12:00 noon, two cars pass each other, heading in opposite directions on parallel roads. One is going 60mph; the other is going 45 mph. At what time will the cars be 140

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Question 579824: At exacthy 12:00 noon, two cars pass each other, heading in opposite directions on parallel roads. One is going 60mph; the other is going 45 mph. At what time will the cars be 140 miles apart?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
At exacthy 12:00 noon, two cars pass each other, heading in opposite directions on parallel roads. One is going 60mph; the other is going 45 mph. At what time will the cars be 140 miles apart?
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The distance between the cars is increasing at the rate of 45+60 = 105 mph
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time = distance/rate = 140/105 = 1 1/3 hrs. = 1hr 20 min.
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time = 1:20 PM
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Cheers,
Stan H.