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Alborosie
3 years ago
15

Solve for b. 3-2(b - 2) = 2 - 7b

Mathematics
2 answers:
Lina20 [59]3 years ago
8 0

Answer

-1

Step-by-step explanation:

malfutka [58]3 years ago
5 0

Answer:

b = -1

Step-by-step explanation:

use distributive property to multiply the -2 with the numbers in the parentheses

3 - 2b + 4 = 2 - 7b

7 - 2b = 2 - 7b

add 2b to both sides

7 = 2- 5b

subtract 2 from both sides

5 = -5b

divide by -5

b = -1

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andrezito [222]

If the pattern (see attachment) below was tripled, the ratio of black squares to gray squares would be equal to 1:2.

<h3>What is a proportion?</h3>

A proportion can be defined as an equation which is typically used to represent (indicate) the equality of two (2) ratios. This ultimately implies that, proportions can be used to establish that two (2) ratios are equivalent and solve for all unknown quantities.

Mathematically, a direct proportion can be represented by the following equation:

y = kx

Where:

  • y and x are the variables.
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<h3>What is a ratio?</h3>

A ratio can be defined as a mathematical expression that's used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.

For this exercise, the ratio of black square to gray squares is given by:

B:G = 1:2

Tripling the pattern, we would multiply by three (3) as follows:

B:G = [1:2] × 3

B:G = 3:6

Dividing all through by 3, we have:

B:G = [3:6]/3

B:G = 3/3 : 6/3

B:G = 1:2.

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5 0
2 years ago
What is 7/8 x c for c=8
Mademuasel [1]
<span><u><em>Answer:</em></u>
7

<u><em>Explanation:</em></u>
<u>We are given the equation:</u>
</span>\frac{7}{8}<span> * c

We want to get the value of the equation at <u>c = 8</u>.
Therefore, all we have to do is <u>substitute c in the equation with 8 and solve</u> as follows:
</span>\frac{7}{8}<span> * 8

= </span>\frac{7*8}{8}
<span>
The 8 in the numerator will be cancelled out with the 8 in the denominator leaving us with only the <u>7 as a solution</u>

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6 0
3 years ago
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Which expression is equivalent to <img src="https://tex.z-dn.net/?f=-4x%5E%7B-5%7D%20x%5E%7B0%7D" id="TexFormula1" title="-4x^{-
Ber [7]

The expression that is equivalent to the given expression is -4x^-5

<h3>How to determine which expression is equivalent to the given expression?</h3>

The expression is given as:

-4x^{-5} x^{0}

Rewrite properly as

-4x^-5x^0

Express as products

-4x^-5 * x^0

The value of x^0 is 1

So, we have:

-4x^-5 * 1

Evaluate the product

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Hence, the expression that is equivalent to the given expression is -4x^-5

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7 0
2 years ago
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krek1111 [17]

Answer:

That will be the Transitive Property

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6 0
3 years ago
HELPPP PLZZ I REALLY NEED HELP
gogolik [260]

Answer: A.

The reason is because if you're adding a negative to a number, it's subtraction, which is in the expression.

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3 years ago
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