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Lana71 [14]
2 years ago
5

The data below show the numbers of hours Mrs. Diaz volunteered at the library each month

Mathematics
1 answer:
vlada-n [284]2 years ago
3 0

Answer:

A. 4.5

Step-by-step explanation:

Given:

20, 12, 27, 23, 18, 20, 30, 26

Mean = 22

Required:

Calculate the Mean Absolute Deviation (M.A.D)

Since, we have the mean; we start calculating M.A.D by subtracting the mean from each data

20 - 22 = -2

12 - 22 = -10

27 - 22 = 5

23 - 22 = 1

18 - 22 = -4

20 -22 = -2

30 - 22 = 8

26 - 22 = 4

The we find absolute value of the result above

|-2| = 2

|-10| = 10

|5| = 5

|1| = 1

|-4| = 4

|-2| = 2

|8| = 8

|4| = 4

Lastly, we calculate the mean of the above to give M.A.D

M.A.D = \frac{2 + 10 + 5 + 1 + 4 + 2 + 8 + 4}{8}

M.A.D = \frac{36}{8}

M.A.D = 4.5

Option A is correct.

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finlep [7]

y=3x+1

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Find the values of m

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The slope of the line is the value of m

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Any line can be graphed using two points. Select two x

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7 0
3 years ago
Mark Went to the store and purchase nine pairs of socks and three packages of undershirts for $8.28 each he also purchase a pair
agasfer [191]

Answer:

He paid $2.35 for each pair of socks.

An equation using the variable S is

$77.99 = 9S + (3 × $8.28) + $32

Step-by-step explanation:

Let S be the cost of a pair of socks

From the question, Mark purchase nine pairs of socks, that is, the total cost of the pairs of socks is 9S

He purchase three packages of undershirts for $8.28 each; the total cost of the three packages of shirt will be 3 × $8.28 = $24.84

and he also purchase a pair of pants for $32

Since he spent a total of $77.99, we can write that

$77.99 = 9S + (3 × $8.28) + $32

Now, we can determine S, the cost of a pair of socks

$77.99 = 9S + (3 × $8.28) + $32

$77.99 = 9S + $24.84 + $32

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7 0
3 years ago
Whats 25% of 90 in full explanation
julia-pushkina [17]

Answer:

22.5

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The answer is 22.5 because you convert 25% to a decimal which equals .25. To make the percent a decimal, you move it two times to the left.

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Answer:

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Step-by-step explanation:

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3 years ago
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velikii [3]

Answer:

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triangle: 9x8/2

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Rectangle: 8x14=112

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3 0
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