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Alla [95]
3 years ago
13

Find the third number if their average is 6 and two of them are 6 and 7​

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
8 0

Answer:

5

Step-by-step explanation:

If their average is 6 and there are three numbers in total, the total sum of the three numbers would be:

6×3 = 18

You know that two of them is 6 and 7, so you can find the last number easily.

18-6-7 = 5  

8_murik_8 [283]3 years ago
4 0

Answer:

5

Step-by-step explanation:

6 +7+5 = 18 and 18/3 = 6

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Compare using <, >, = 5+(-4)____-4 + (-7)
nikitadnepr [17]

Good morning,

Answer:

<h2>5+(-4) > -4 + (-7)</h2>

Step-by-step explanation:

5+(-4) = 5 - 4 = 1

-4 + (-7) = -(4+7) = -11

since  1 > -11 then 5+(-4) > -4 + (-7)

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3 years ago
How can we tell if a number is divisible by 4
Elza [17]

Answer: You take the last two digits of the original number and see if they are divisible by 4.

Step-by-step explanation: Take your original number and find the last two digits. If they are divisible by 4, then the original number is divisible by 4.

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2 years ago
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The average number of employees that call in sick for the day over the course of a year is 25.
sveta [45]

Answer:

<h3>x¯= 23.8 </h3><h3>μ= 8.2 </h3>

Step-by-step explanation:

<h3>Find the mean. </h3>

 

The mean of a set of numbers is the sum divided by the number of terms.

x¯= <u>25+10+16+39+27+25+32+25+25+22+28+14</u>

                                   11

<h3>Simplify the numerator. </h3>

x¯ = <u>261.27</u>

            11

<h3>Divide  261.27 by 11 </h3>

x¯= 23.75 18

<h3>Divide. </h3>

x¯= 23.75 18

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

x¯=23.8

<h3>Simplify each value in the list. </h3>

25,10,16,39.27,25,32,25,25,22,28,14

Set up the formula for sample standard deviation. The standard deviation of a set of values is a measure of the spread of its values.

s=  n^∑  i=1    √(<u>xi−xavg</u>)²

                            N-1

             

Set up the formula for standard deviation for this set of numbers.

s= ⎷(25−23.8)²+(10−23.8)²+(16−23.8)²+(39.27−23.8)²+(25−23.8)²+<u>(32−23.8)²+(25−23.8)²+(25−23.8)²+(22−23.8)²+(28−23.8)²+(14−23.8)</u>²

                                       11−1

<h3>Simplify the result. </h3>

 

s= √68.05209

The standard deviation should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

8.2

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The median of a data set is the measure of center______.
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Answer:

C.

Step-by-step explanation:

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