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zzz [600]
4 years ago
15

What is the mean of the data set? {21, 23, 25, 25, 26, 28, 28, 28, 31, 33} 26.8 27 27.8 28

Mathematics
2 answers:
Lerok [7]4 years ago
8 0
In mathematics, mean average means to take the sum of all the numbers and divide the sum by the number of elements in the set.

Add up the numbers.

<span>21 + 23 + 25 + 25 + 26 + 28 + 28 + 28 + 31 + 33 = 268

Divide by the number of elements in the set. Which is 10.

268 / 10 = 26.8

So, the answer to this question is 26.8</span>
GenaCL600 [577]4 years ago
6 0
 I think the mean is the mean is 26.98 I hope this helps, btw the way u find mean by adding all the numbers together then divide by the amount of numbers you have like for this one u had 14 number so u divide your total by 14
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Express using algebra.
Scorpion4ik [409]

Answer:

1/3 of the original

Step-by-step explanation:

one piece is TWO times longer than the other one. if you break it in half you have three pieces that are all the same size

7 0
3 years ago
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bagirrra123 [75]

Answer:

(x, y) = (2, -1.5)

Step-by-step explanation:

x + 2y = -1

5x - 4y = 16

<=>

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5x - 4y = 16

<=>

2x + 4y = -2

5x - 4y = 16

<=>

7x = 14

<=>

x = 2

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=> 2 + 2y = -1

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6 0
4 years ago
Who is closer to finishing the race, Nancy or Florence ?
Reil [10]
Florence is closer to finishing the race
5 0
3 years ago
8x(5+10)= (8x5) + (5x10)
Slav-nsk [51]

Answer:

i think its x= 0.75

Step-by-step explanation:

substitute:

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add like terms

so it'd be:

120x = 90

now divide 90 by 120 and that would give you the value of x alone which is 0.75

7 0
3 years ago
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If x = -5 and y = x + 4, what ordered pair represents the solution? A. (5, -1) B. (-5, -1) C. (5, 1) D. (4, 4)
tekilochka [14]
B.) would be correct
(x,y)
x=-5
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