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Dmitrij [34]
3 years ago
6

The sum of two numbers is 39. The sum of twice the larger number and three times the smaller number is 93. Find the smaller numb

er.
Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:3 * (n + 4) = 93

3n + 12 = 93

Subtract 12 to both sides:

3n = 81

Divide 3 to both sides:

n = 27

Step-by-step explanation:

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Find the mean and standard deviation for the set of data.
dem82 [27]

The mean and standard deviation for the set of data will be 16 and 5.87. Then the correct option is A.

<h3>What is a standard deviation?</h3>

It is the measure of the dispersion of statistical data. Dispersion is the extent to which the value is in a variation.

The set of data is given below.

16, 22, 8, 5, 20, 18, 14, 17, 24

The mean of the data set will be

μ = (16 + 22 + 8 + 5 + 20 + 18 + 14 + 17 + 24) / 9

μ = 144 / 9

μ = 16

Then the standard deviation of the data set will be

\rm \sigma = \sqrt{\dfrac{\Sigma (x_i - \mu)^2}{n}} \\\sigma = \sqrt{\dfrac{(16 - 16)^2 +(22 - 16)^2 + (8-16)^2 + ......+(24-16)^2  }{9}} \\\sigma = \sqrt{\dfrac{310}{9}}\\

Simplify the expression further, then we have

σ = √34.44

σ = 5.87

The mean and standard deviation for the set of data will be 16 and 5.87.

Then the correct option is A.

More about the standard deviation link is given below.

brainly.com/question/12402189

#SPJ1

3 0
1 year ago
Dont really understand
Llana [10]
Area is base times height, so take the 12 and 16 and multiply them, you will get 192 which is your answer
3 0
3 years ago
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Janice thinks that 20 hundreths is equivalent to 2 thousands because 20 hundreths is equal to 2 thousands. use words and a place
Ratling [72]
<span>20 hundreds is equal to 2 thousands, however 20 hundreths is not equal to 2 thousandths. 2 in the 0,2 is 100 times greater than 2 in 0,002.

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4 0
3 years ago
1.5 X -2.4 is greater than or equal to 6.6
kotegsom [21]

Answer:

greater than because positive times negative equals positive

5 0
3 years ago
I need help to this question
dlinn [17]
The range would be $14.

To find the range, you would take the highest value and subtract it by the lowest value:
29 - 43 =
14

Hope this helped! :)
5 0
3 years ago
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