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Y_Kistochka [10]
10 months ago
11

the number of men in a class is 4 less than ten times the number of women. let m represent the number of men and w represent the

number of women. the number of women can be represented by
Mathematics
1 answer:
Scrat [10]10 months ago
3 0

The number of women can be represented by the equation w = m+4 / 10.

What is the conditional ratio?

In order to test for conditional independence of two variables given the third variable, we use conditional odds ratios, which are odds ratios between two variables for fixed levels of the third variable.

The number of men = m,

The number of women = w,

We have given,

the number of men in a class is 4 less than ten times the number of women.

It means m = 10w -4

so,

m+4 = 10w

 w = m+4 / 10

Hence, the number of women can be represented by the equation w = m+4 / 10.

To learn more about the conditional ratio visit,

brainly.com/question/26253067

#SPJ4

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Solve the system of linear equations by graphing. Round the solution to the nearest tenth.
jeyben [28]

Answer:

The approximate solution to the system is (1.2, 4.4)

x = 1.2 and y = 4.4

Step-by-step explanation:

The solution of the system of linear equations equation y = –0.25x + 4.7 and y = 4.9x – 1.64 is shown in the attached graph. The red line represents the equation y = –0.25x + 4.7 and the blue line represents the equation  = 4.9x – 1.64.

The solution of the system of equations is their point of intersection shown on the graph.

The point of intersection is (1.231, 4.392). To the nearest tenth, it is (1.2, 4,4). So x = 1.2 and y = 4.4.

So the approximate solution to the system is (1.2, 4.4)

6 0
3 years ago
Read 2 more answers
A researcher records the repair cost for 8 randomly selected washers. A sample mean of $60.46 and standard deviation of $18.36 a
Anuta_ua [19.1K]

Answer:

The critical value is T = 1.895.

The 90% confidence interval for the mean repair cost for the washers is between $48.159 and $72.761

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 8 - 1 = 6

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.895, which is the critical value.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.895\frac{18.36}{\sqrt{8}} = 12.301

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 60.46 - 12.301 = $48.159

The upper end of the interval is the sample mean added to M. So it is 60.46 + 12.301 = $72.761

The 90% confidence interval for the mean repair cost for the washers is between $48.159 and $72.761

8 0
3 years ago
Find the mean of 81, 97, 99, 89, 91, 76 (round to the hundredths)
Marta_Voda [28]

Answer:

88.83

Step-by-step explanation:

To find the mean of a set of numbers is to find the average a set of numbers.

To solve for the mean you have to add all of the values together and divide that sum by the number of values there are.

Ex. 81, 97, 99, 89, 91, 76

     81 + 97 + 99 + 89 + 91 + 76 = 533

     533 / 6 = 88.83

               ↓

     (number of values)

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There are 11 reams of paper in a case. How many total reams of paper are in 12 cases?
s2008m [1.1K]
Formula is:
Number of reams per case x number of cases

11 x 12 = 132 reams
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20) Explain what 25 ÷ 0.2 means
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It means 25 divided by 0.2

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