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Butoxors [25]
3 years ago
9

A museum is open for 8 hours each day.THe manager schedules 12 tours for Tuesday.How long does each tour last

Mathematics
2 answers:
Sergio [31]3 years ago
6 0

Answer:

1 1/2 hours OR 90 minutes

Step-by-step explanation:

In order to find this, divide 12 by 8, which equals 1.5. In hours, this is 1 hour and 30 minutes. Or, 90 minutes. Hope this helps!

ASHA 777 [7]3 years ago
5 0
The answer is 39.6 minutes or roughly 40 minutes.

Calculation:

8/12=.66 , 66%

66% of 1 hour or 60 minutes is 39.6 round to 40 minutes

So 12* 40 = 480 minutes

480 min/60min = 8hours
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3 years ago
How much of a radioactive kind of thorium will be left after 14,680 years if you start with
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Answer:

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Step-by-step explanation:

The equation to find the half-life is:

N(t)= N_{0}e^{-kt}

N(t) = amount after the time <em>t</em>

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It is known that after a half-life there will be twice less of a substance than what it intially was. So, we can get a simplified equation that looks like this, in terms of half-lives.

N(t)= N_{0}e^{-\frac{ln(\frac{1}{2}) }{t_{h} } t} or more simply N(t)= N_{0}(\frac{1}{2})^{\frac{1}{t_{h} } }

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Plug these into the equation:

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Using a calculator we get:

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Hope this helps!! Ask questions if you need!!

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