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Hatshy [7]
3 years ago
12

A fee of 12.50 is deducted each month from Aubryn's bank account. She currently has a balance of $75.00 in her account. She must

maintain a balance greater than $0. (Assume no deposit and withdrawals.)
Inequality:

Solution:

Interpretation:
Mathematics
1 answer:
sukhopar [10]3 years ago
4 0
$75.00-12.50≥$0

The sign should be greater than and not Greater than or equal to. I used it be that's the only available sign to help out with.
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The population of a city is 451,400. The population is expected to decrease at a rate of 3.2% each year.
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Answer:

Find out the what function equation represents the population of the city after t years .

To prove

The population of a city is 451,400. The population is expected to decrease at a rate of 3.2% each year.

This can be represented by exponential decreasing function.

f(t) = a (1 - r)^{t}

Where a is the initial value.

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Here

a = 451,400

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= \frac{3.2}{100}

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Put in the formula

f(t) = 451400 (1 - 0.032)^{t}

f(t) = 451400 (0.968)^{t}

Therefore the decrease in the population of the city after t years is represented by

f(t) = 451400 (0.968)^{t}



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Answer:

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Step-by-step explanation:

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