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$0.75 Calculus

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Due on Nov. 05, 2009
Asked on Nov 05, 2009 at 8:34:35PM

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Two trains leave a station at 12:00 noon. One travels north on a track at 30 mph. The second travels east on a track at 55 mph. At 1:00 PM the northbound train stops for one-half hour at a station while the eastbound train continues at 55 mph without stopping. At 1:30 PM the northbound train continues north at 30 mph. How fast are the trains traveling away from one another at 2:00 PM?

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thementoronline
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Posted on Nov 05, 2009 at 8:41:05PM

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Preview: ... e between trains at 2:00 ((M1\D * 30)) + ((M2\D) * 55) M ...

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Posted on Nov 05, 2009 at 10:50:30PM

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Preview: ... (t - 1/2) miles = (30t - 15) miles and the distance traveled by the eastbound train = 55t miles So, the distance betwee ...

The full tutorial is about 105 words long .