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notsponge [240]
3 years ago
13

-84 = -5(2x + 4) - 4

Mathematics
2 answers:
astraxan [27]3 years ago
6 0

-84 = -5(2x+4) - 4| *(-1)\\5(2x+4) + 4 = 84\\10x + 24 = 84\\10x = 84 - 24 = 60\\x = \frac{60}{10} = 6

BlackZzzverrR [31]3 years ago
6 0

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

-84=-5(2x+4)-4\qquad\text{add 4 to both sides}\\\\-84+4=-5(2x+4)-4+4\\\\-80=-5(2x+4)\qquad\text{divide both sides by (-5)}\\\\\dfrac{-80}{-5}=\dfrac{-5(2x+4)}{-5}\\\\16=2x+4\qquad\text{subtract 4 from both sides}\\\\16-4=2x+4-4\\\\12=2x\qquad\text{divide both sides by 2}\\\\\dfrac{12}{2}=\dfrac{2x}{2}\\\\6=x\to x=6

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1/4 of a pound. 3/4 divided by 3 = 3
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4 years ago
Given the following population find its standard deviation 2,44,47,52,56,54,40,44,50,41,52,4
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Answer:

Step-by-step explanation:

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4 0
3 years ago
The table shows your scores in a skateboarding competition. The leader has 311.62 points. Select the equation that you can use t
sasho [114]

Answer:

✅p + 63.43 + 87.15 + 81.96 = 311.62

✅To take the lead, your score in the fourth round must be greater than 79.08.

Step-by-step explanation:

If you score, 63.43, 87.15, 81.96 in the first, second and third round respectively, if the current leader has a total score of 311.62 points, the point p that you need to score to equal 311.62 points, can be found using the following equation:

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Subtract 232.54 from each side

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5 0
3 years ago
Match the system of equations on the left with the appropriate solution on the right.
krok68 [10]

Answer:

Step-by-step explanation:

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3 years ago
Help please!<br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.
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Answer:

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Step-by-step explanation:

you can find the slope to find b or y-intercept (x=0) for equation

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50 = -125 + b

b = 175; which is the initial # of pages to start

3 0
3 years ago
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