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melamori03 [73]
3 years ago
12

Combine like terms. What is a simpler form of the expression? -3(-4y + 3) + 7y

Mathematics
2 answers:
myrzilka [38]3 years ago
8 0
The answer to this problem is 19y-9.
Yakvenalex [24]3 years ago
3 0
19y-9 is a simpler form of this expression. You can use distributive property to get rigid the brackets (multiply -3 by -4y and 3) , then your expression looks like 12y-9+7y. You then combine like terms to get 19y-9.
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Vinil7 [7]

Answer:

A. 3x + (x+8) = -22 - 2x

Step-by-step explanation:

Let the number equal x.

Set up the first half of the equation.

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Sum means that you add the components.

Set up the second half of the equation.

The difference between -22 and twice the number can be written as:

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2 years ago
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Nostrana [21]
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8 0
3 years ago
Population Growth The population of a town of 5000
Nesterboy [21]

Answer:

a) A=5000{(1.03)}^{t}

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The formula used for compound interest becomes very helpful in this case.

A=P{(1+r)}^{t}\\\\When:\\A = Final Value\\P = Initial Value\\r = Rate of Change (Decimal)\\t = Time (Years)

Knowing this, we can easily calculate the value for any year, counting from the original 5000.

From this formula, we can derive a specific one that will serve for any value of <em>t</em>.

a)

A=5000{(1+0.03)}^{t}\\A=5000{(1.03)}^{t}

b) Apply the formula:

A=5000{(1.03)}^{3}\\A=5000(1.092727)\\A=5463.635=5464

The town will have 5464 inhabitants.

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4 years ago
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