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NemiM [27]
3 years ago
8

What is the LCM of 6 and 9?

Mathematics
2 answers:
masya89 [10]3 years ago
8 0
The LCM for the numbers 6 & 9 is 18.

Hope this helped!
tatiyna3 years ago
4 0
LCM of 6 and 9 is 18
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The population of a suburb grows at a rate proportional to the population. Suppose the population doubles in size from 3000 to 6
frozen [14]

Answer:

P(t) = 3000e^{0.1155t}

Step-by-step explanation:

The growth of the population can be modeled by the following differential equation:

\frac{dP}{dt} = rP

Where r is the growth rate, P is the population, and t is the time measures in months.

I am going to solve the above differential equation with the separation of variables method.

\frac{dP}{P} = rdt

Integrating both sides:

ln P = rt + P(0)

Where P(0) is the initial condition

We need to isolate P in this equation, so we do this

e^{ln P} = e^{rt + P(0)}

So

P(t) = P(0)e^{rt}

The problem states that P(0)=3000, so:

P(t) = 3000e^{rt}

The problem wants us to find the value of r:

It states that the population doubles in size from 3000 to 6000 in a 6- month period, meaning that P(6) = 6000. So

6000 = 3000e^{6r}

e^{6r} = 2

To isolate 6r, we apply ln to both sides.

ln (e^{6r}) = ln 2

6r = 0.693

r = \frac{0.693}{6}

r = 0.1155

The particular solution to the differential equation with the initial condition P(0)=3000 is:

P(t) = 3000e^{0.1155t}

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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