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oksano4ka [1.4K]
3 years ago
13

Please help me with this question.​

Mathematics
1 answer:
Stels [109]3 years ago
7 0

Step-by-step explanation:

Mean of the origibal set = 20

No. of terms = 10

Sum = Mean x No. of terms

= 20 x 10 = 200

The sum of additional numbers to make the new set of observstion is 4 + 8 + 12...... + 40 = 220

New Sum = 200 + 220 = 420

The no of terms stay the same

New Mean = New Sum/ N

= 420/10

= 42

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Answer:

31.25 k

Step-by-step explanation:

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.80  x    = 25 k

x   = 25 k / .80 = 31.25 k

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2 years ago
I need help asap i don’t get it
Zolol [24]
The answers is it’s shows a good example D
5 0
3 years ago
12/k = 18/42 what is k
Maslowich

Answer:

k = 28

Step-by-step explanation:

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5 0
3 years ago
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Answer:

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tatyana61 [14]

Answer:

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