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3 years ago

What is the sale price rounded to the nearest dollar?

Mathematics

1 answer:

valina [46]3 years ago

4 0

Marked down 20% means it is selling for 80% of the original price ( 100% - 20% = 80%)

Multiply the original price by 80%

270 x 0.80 = $216.00

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Answer:

B) AAS

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The number. Find the nume.

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Answer: 8x+3x=12x+9

The number is -9.

Step-by-step explanation: Combine like terms.

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The population of a certain community is known to increase at a rate proportional to the number of people present at time t. If

attashe74 [19]

Answer:

$t=7.85 years$

Step-by-step explanation:

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$\frac{dP}{P}=adt$

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$\int \frac{dP}{P}=\int adt$

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$P=e^{at+c}$

$P=e^{c}e^{at}=Ce^{at}$

To find C we need to use the initial condiction, it means evaluae P at t=0.

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Now, we use the sentence the population has doubled in 5 years.

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We can find "a" in this condition.

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$a=\frac{ln(2)}{5}$

$a=0.14$

Finally, let's find how long will it take to triple.

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$t=7.85 years$

I hope it helps you!

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