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Keith_Richards [23]
3 years ago
5

If a train leaves the station at 7:00 AM and travels at 56 mph, at what time would it arrive at the next town that is 450 miles

away?
Mathematics
1 answer:
ELEN [110]3 years ago
6 0

Answer:

Step-by-step explanation:

This is a simple motion problem.  Believe me, they get much harder!  The distance formula is

d = rt

We want to know, basically, how long it will take this train traveling 56 mph to go 450 miles.  We have the r, rate, and the d, distance:

450 = 56t so

t = 8.0

That means it will take 8 hours for the train to travel that far.  If it leaves at 7 am, 8 hours after that will put it in the next town at approximately 3pm.

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Step-by-step explanation:

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  f_{ave}=\displaystyle\frac{1}{16-0}\int_0^{16} {3x^{\frac{1}{2}}} \, dx=\left.\frac{x^{3/2}}{8}\right|_0^{16}=8

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  3√c = 8 . . . . . use f(c)

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