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KatRina [158]
3 years ago
13

3.95m + 8.95b = 47.65

Mathematics
1 answer:
nataly862011 [7]3 years ago
6 0
3.95m + 8.95b = 47.65  Equation 
 
                      \fbox{Solution for variable m}

3.95m=47.65-8.95b
  \text{Subtract 8.95b from both sides} 

m= \dfrac{47.65-8.95b}{3.95}  \text{Divide both sides by 3.95} 

                      \fbox{Solution for variable b}        
 
 3.95m + 8.95b = 47.65  Equation    

8.95b=47.65-3.95m
     \text{Subtract 3.95m from both sides}

b= \dfrac{47.65-3.95m}{8.95} \text{Divide both sides by 8.95} 
         
                                  \text{Hence Solved}
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5 0
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For a population with = 100 and = 20, what is the x value corresponding to z = 1.50?
mafiozo [28]

For a population with mean (μ) = 100 and standard deviation (σ) = 20, the X value corresponding to z = 1.50 is 130.

<h3>What is a z-score?</h3>

A z-score is also referred to as a standard score and it's a measure of the distance between a raw score and the mean, when standard deviation units are used.

<h3>How to determine the value of x?</h3>

In Statistics, the standardized z-score is giving by this formula:

Z=\frac{\bar{x}\;-\;\mu}{ \sigma }

Making x the subject of formula, we have:

x = Zσ + μ

Substituting the given parameters into the formula, we have;

x = 1.50(20) + 100

x = 30 + 100

x = 130.

Read more on z-scores here: brainly.com/question/4302527

#SPJ4

Complete Question:

For a population with μ= 100 and σ = 20, what is the X value corresponding to z = 1.50?

30

101.5

115

130

6 0
2 years ago
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