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2 years ago

3(x + 1) - 2x = -6 what is X i need halp

2 answers:

5 0

3(x+1)-2x=-6
3x+3-2x=-6
(Like terms) 3x-2x=1x
3+1x=-6
-6-3+-9
Now you’re going to divide -9 by 3 which you will get -3
That will be your answer, hope that help you

Mashutka [201]2 years ago

4 0

Answer:x=−9

Step-by-step explanation:

Apply the distributive property.

3 x + 3 ⋅ 1 − 2 x = − 6

Multiply 3 by 1

3 x + 3 − 2 x = − 6

Subtract 2x from 3x.

x + 3 = − 6

Move all terms not containing x to the right side of the equation.

Subtract 3 from both sides of the equation.

x = − 6 − 3

Subtract 3 from − 6 .

x = − 9

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What is the value of x?

cestrela7 [59]

-3x-1 = 2-(-3)
-3x-1 = 2+3
-3x-1 = 5
-3x = 5+1
-3x = 6
x = 6/(-3)
x = -2

6 0

2 years ago

docker41 [41]

Answer:

1115322

Step-by-step explanation:

In 1906, San Francisco felt the impact of an earthquake with a magnitude of 7.8.

Claimed statement is he worst is yet to come, with an earthquake 142,990 times as intense as the 1906 earthquake ready to hit San Francisco.

We need to find the magnitude of their claimed earthquake.

It can be calculated by simply multiplying 142,990 by 7.8 as follows :

$E=142990 \times 7.8\\\\=1115322$

The magnitude of claimed earthquake is 1115322 .

8 0

2 years ago

5488÷32 = a. 171R16 b. 176R18 c. 176R10 d. 171R8

Alexxx [7]

A. 171r16 in my coculations

4 0

3 years ago

Please help me!!!!!!!!!

Gnesinka [82]

4x +1 so I got it like this 5x +3-x-2

4 0

3 years ago

A company that makes shampoo wants to test whether the average amount of shampoo per bottle is 16 ounces. The standard deviation

S_A_V [24]

Answer:

The correct option is 16.041 ounces.

Step-by-step explanation:

A single mean test can be used to determine whether the average amount of shampoo per bottle is 16 ounces.

The hypothesis can be defined as:

H₀: The average amount of shampoo per bottle is 16 ounces, i.e. μ = 16.

Hₐ: The average amount of shampoo per bottle is different from 16 ounces, i.e. μ ≠ 16.

The information provided is:

$n=64\\\sigma=0.20\\\alpha =0.10$

We can compute a 90% confidence interval to determine whether the population mean is 16 ounces or not.

Since the population standard deviation is known we will compute the z-interval.

The critical value of z for 90% confidence interval is:

$z_{0.05}=1.645$

*Use a z-table.

Compute the 90% confidence interval for population mean as follows:

$CI=\bar x\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}\\$

Since the sample size is quite large, according to the law of large numbers the on increasing the sample size, the mean of the sample approaches the whole population mean.

So, the 90% confidence interval estimate for sample mean is:

$CI=\mu\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}\\=16\pm 1.645\times \frac{0.20}{\sqrt{64}}\\=16\pm0.041125\\=(15.958875, 16.041125)\\\approx (15.959, 16.041)$

Thus, the correct option is 16.041 ounces.

3 0

2 years ago