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3 years ago

Solve 2x+7=x-3 Please can u show your working out

Mathematics

2 answers:

Korolek [52]3 years ago

7 0

X= -10
You may review the image Ive attached to see how I got this answer.

Alexxandr [17]3 years ago

7 0

Subtract 7 from both sides.
1. 2x + 7 - 7 = x - 3 - 7
now the equation reads like this
2x = -10 + x
subtract x from both sides
2. 2x - x = -10 + x - x
now the equation reads like this
x = -10
then you have your answer
3. x = (-10)

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Find the amount of time needed for the sinking fund to reach the given accumulated amount. (Round your answer to two decimal pla

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Answer:

8.82 years.

Step-by-step explanation:

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3 years ago

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zavuch27 [327]

Answer:

Step-by-step explanation:

7 0

3 years ago

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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

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

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$P(Xx_2)=0.03$

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=0.03

From z- table we get

$P(Z1.88)=0.03$

Therefore, we get

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

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$x_1=-1.88\times 0.08+8.04$

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$x_2=1.88\times 0.08+8.04$

$x_2=8.1904$

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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Answer:

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Step-by-step explanation:

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4 years ago

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