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jeyben [28]
3 years ago
8

1)

Mathematics
2 answers:
borishaifa [10]3 years ago
3 0
Multiply everything in the parenthesis by -4.

-12 + 8x + 2x = 2x - 8

Combine like terms.

-12 + 10x = 2x - 8

Subtract 10x from both sides.

-12 = -8x - 8

Add 8 to both sides.

-4 = -8x

Divide both sides by -8.

x = 0.5

Hope this helps!
nasty-shy [4]3 years ago
3 0
The  answer should be x=1
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OlgaM077 [116]
DO NOT GO TO THAT LINK IT IS A VIRUS
6 0
3 years ago
The city of Raleigh has 11700 registered voters. There are two candidates for city council in an upcoming election: Brown and Fe
Vesnalui [34]

Answer:

The sample statistic for the proportion of voters surveyed who said they'd vote for Brown is 0.308.

The expected numbers of voters who would vote for Brown is 3604.

Step-by-step explanation:

The sample statistic is a numerical quantity used to represent a characteristic of a sample. For example, sample mean is a sample statistic representing the average of the sample. Or, sample proportion is a sample statistic representing the proportion of a particular variable in the sample. Or sample variance is a sample statistic representing the variance of the sample.

The sample statistic can be used to estimate the population parameter.

They are known as the point estimate of the parameter.

The sample proportion of a variable <em>X</em> is given by:

\hat p=\frac{X}{n}

It is provided that of the <em>n</em> = 250 registered voters selected, the number of voters who said they would vote for Brown is <em>X </em>= 77.

Compute the sample statistic for the proportion of voters surveyed who said they'd vote for Brown as follows:

\hat p=\frac{X}{n}

  =\frac{77}{250}\\

  =0.308

Thus, the sample statistic for the proportion of voters surveyed who said they'd vote for Brown is 0.308.

Compute the expected number of people of the 11700 registered voters who would vote for Brown as follows:

E(X)=N\times \hat p

         =11700\times 0.308\\=3603.6\\\approx 3604

Thus, the expected numbers of voters who would vote for Brown is 3604.

6 0
3 years ago
If the sale price is $40 and the discount is 25%, what is the original price?
sveta [45]
Use this equation to solve the problem:

x - (x * .25) = 40

This equation is saying the original price times itself by 25% is 40.

x - (x * .25) = 40
Simplify.
x - .25x = 40
.75x = 40
Divide both sides by .75.
x = 53.33

The original price was $53.33
3 0
3 years ago
You hike up a mountain. You climb steadily for 2 hours, then take a 30-minute break for lunch. Then you continue to climb, faste
grandymaker [24]

Answer:

<u>Continuous </u>

Step-by-step explanation:

The graph is considered continuous due to the fact that it can take any amount of height, weight, and temperature. If it was discrete there would be a limit to your hike.

I really hope this helped you, please be sure to make my answer brainiest. Thank you and have a great night sleep / or have a great day! :D

6 0
3 years ago
What is the equivalent fraction?
Vera_Pavlovna [14]
0.7 =  \dfrac{7}{10} = \dfrac{7 \times 10 }{10 \times 10} = \dfrac{70}{100}

Answer: 70/100
3 0
3 years ago
Read 2 more answers
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