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slega [8]
3 years ago
7

Please explain how you got it

Mathematics
1 answer:
Mariulka [41]3 years ago
3 0

Answer:

The answer is the last one

Step-by-step explanation:

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C. Your financial goals will change over time.

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The population of a town has grown at an annual rate of 2.7%. How long does it take for it’s population of 18,450 people to doub
charle [14.2K]
It would take 26 years.

The equation will be in the form y = a(1+r)ˣ, where a is the initial population, r is the growth rate as a decimal number, and x is the amount of time.  Using our information we have

y = 18450(1+0.027)ˣ = 18450(1.027)ˣ

We want the population to be doubled; 18450*2 = 36900:
36900 = 18450(1.027)ˣ

Divide both sides by 18450:
36900/18450 = 18450(1.027)ˣ/18450
2 = 1.027ˣ

Using logarithms, we have
\log_{1.027}2=x
\\
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3 0
3 years ago
Find the Percent Change from the first value to the second.
attashe74 [19]
Not exactly sure what values are represented here. 
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3 years ago
Given f(x)=2x+5 find f(3)
Serga [27]

Answer:

3.) 11

General Formulas and Concepts:

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 2x + 5

f(3) is x = 3

<u>Step 2: Solve</u>

  1. Substitute:                    f(3) = 2(3) + 5
  2. Multiply:                        f(3) = 6 + 5
  3. Add:                              f(3) = 11
8 0
3 years ago
Cheese costs 4.50 per pound. how much does 3 pounds of cheese cost
Ulleksa [173]
3 lbs at 4.50 per lb = (4.50 * 3) = 13.50 <==
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3 years ago
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