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Airida [17]
3 years ago
15

12(x-1)=2(5x+2)how do you solve plz help ​

Mathematics
2 answers:
laila [671]3 years ago
7 0

Answer:

x=8

Step-by-step explanation:

12x-12=10x+4

then solve that for x

labwork [276]3 years ago
3 0
<h3>Answer:</h3>

x = 8

<h3>Step-by-step explanation:</h3>

12(x - 1) = 2(5x + 2) \\ first \: you \: need \: to \: distribute \\  \\ 12x - 12 = 10x + 4 \\ subtract \: 10x \: from \: both \: sides \\  \\ 2x - 12 = 4 \\ add \: 12 \: from \: both \: sides \\  \\ 2x = 16 \\ divide \: both \: sides \: by \: 2 \\  \\ x = 8

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Answer:

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If we have a random sample of size n from a normal distribution with mean \mu and standard deviation \sigma, then we know that \bar{X} is normally distributed with mean \mu and standard deviation \sigma/n. Therefore we can use (\bar{X}-\mu)/\frac{\sigma}{\sqrt{n}} as a pivotal quantity.

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