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melisa1 [442]
3 years ago
10

Please help me i been stuck all day on this. Find the value of x.

Mathematics
2 answers:
erastova [34]3 years ago
7 0

Answer:

14

Step-by-step explanation:

105 and (6x-21) the same. So you do 105 minus 21, then divide that by 6.

natita [175]3 years ago
5 0
The answer is 14 :)
(Hope that helped)
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You have just used the network planning model and found the critical path length is 30 days and the variance of the critical pat
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Answer:

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 30 days

Variance = 25 days

Standard Deviation,

\sigma = \sqrt{\text{Variance}} = \sqrt{25} = 5

We assume that the distribution of path length is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(completed in 33 days or less)

P( x \leq 33) = P( z \leq \displaystyle\frac{33 - 30}{5}) = P(z \leq 0.6)

Calculation the value from standard normal z table, we have,  

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3 years ago
You have at most $75 to spend on books and music. You want to spend less than $20 on music and no more than $60 on books. Which
Gemiola [76]

Answer:

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Step-by-step explanation:

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3 years ago
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3 years ago
If 120% is £360 what is 100%
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In this question a vital information has been provided. This information can be used for determining the answer to the question that is asked. It is given that 120% of a certain number is 360 pound. The 100% value of the number needs to be determined.
Let us assume the number to be = x
Then
120x/100 = 360
12x/10 = 360
12x = 360 * 10
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x = 3600/12
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3 years ago
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