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morpeh [17]
3 years ago
7

Please show me step by step how to solve this problem 3(-8+4v)=8v ?

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
8 0
So we know that:
3(-8 + 4v) = 8v
To find v, first simplify the left hand side:
-24 + 12v = 8v
Then group the "v's" over to the right:
-24 = -4v
-6 = -v
So v = 6

Hope this helped
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Answer:

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Step-by-step explanation:

Complete question

A chocolate chip cookie manufacturing company recorded the number of chocolate chips in a sample of 50 cookies. The mean is 23.33 and the standard deviation is 2.6. Construct a 80% confidence interval estimate of the standard deviation of the numbers of chocolate chips in all such cookies.

Solution

Given  

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confidence interval:

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