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nevsk [136]
3 years ago
5

Which of these expressions is equivalent to 2 (2x+1)

Mathematics
1 answer:
ANEK [815]3 years ago
7 0
2(2x + 1)
= 2 * 2x + 2
= 4x + 2
So, in conclusion, the answer to this question is a) 2 * 2x + 2
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One number is 9 more than twice another. If their difference is 22, what is the larger number? 133135
adoni [48]

ANSWER :

The larger number is 35

EXPLANATION :

Let x = first number

The second number is 9 more than twice the other number.

So that will be (2x + 9)

The difference between the two is 22.

So we have :

\begin{gathered} (2x+9)-x=22 \\ x+9=22 \\ x=22-9 \\ x=13 \end{gathered}

The first number is 13

The second number will be :

2(13) + 9 = 26 + 9

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7 0
1 year ago
For two months, Milan used the same landscaping maintenance company. The company had a fixed reservation rate per month, plus an
Daniel [21]

Answer:

The equation of the line that represents the landscaping company's fixed reservation rate and charge per hour is y=15.9x+77.025

Step-by-step explanation:

The first bill amount for 2.75 hours of  landscaping work = $120.75

The second bill amount for 5.25 hours of  landscaping work = $160.50

No we are supposed to find the equation of the line that represents the landscaping company's fixed reservation rate and charge per hour

So, we will us two point slope form to find the equation:

Formula : y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

(x_1,y_1)=(2.75,120.75)\\(x_2,y_2)=(5.25,160.50)

Substitute the values in the formula

y-120.75=\frac{160.50-120.75}{5.25-2.75}(x-2.75)\\y=15.9x+77.025

Hence  the equation of the line that represents the landscaping company's fixed reservation rate and charge per hour is y=15.9x+77.025

3 0
3 years ago
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3 years ago
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viktelen [127]

Step-by-step explanation:

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7 0
3 years ago
Please please please pleaseee help
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