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3 years ago

6x +2 =2(x+4)-2 helpp meee

Mathematics

2 answers:

Ivanshal [37]3 years ago

7 0

Answer:

Step-by-step explanation:

6x + 2 =2(x+4) - 2

Distribute the 2. 6x + 2 = 2x + 8 - 2

Combine like terms. 6x + 2 = 2x + 6

Subtract 2x from both sides. 4x + 2 = 6

Subtract 2 from both sides. 4x = 4

Divide each side by 4. x = 1

Kay [80]3 years ago

5 0

Answer:

Hello!

_______________

Your answer would be ( B ) x = 1

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helped you!

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The weights of certain machine components are normally distributed with a mean of 8.04 g and a standard deviation of 0.08 g. Fin

NISA [10]

Answer:

The bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

Step-by-step explanation:

We are given that

Mean, $\mu=8.04 g$

Standard deviation, $\sigma=0.08g$

We have to find the two weights that separate the top 3% and the bottom 3%.

Let x be the weight of machine components

$P(Xx_2)=0.03$

$P(X$

=0.03

From z- table we get

$P(Z1.88)=0.03$

Therefore, we get

$\frac{x_1-8.04}{0.08}=-1.88$

$x_1-8.04=-1.88\times 0.08$

$x_1=-1.88\times 0.08+8.04$

$x_1=7.8896$

$\frac{x_2-8.04}{0.08}=1.88$

$x_2=1.88\times 0.08+8.04$

$x_2=8.1904$

Hence, the bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

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2 years ago

I need help to solve it

Sidana [21]

Answer:

She will earn £9.01 per hour after the pay rise

Step-by-step explanation:

Here, we want to calculate a value, given the percentage of the pay rise

From the question, the percentage is 6%

The pay rise is thus;

8.50 + 6% of 8.50

= 8.50 + (6*8.5)/100

= 8.50 + 0.51

= £9.01

4 0

3 years ago