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Sladkaya [172]
3 years ago
10

What is the solution of -6 + a = 22? A 28 B. -28 0 C. 16 D. -16

Mathematics
1 answer:
KatRina [158]3 years ago
6 0

Answer:

A.28

Step-by-step explanation:

Substitute a with 28 so:

-6+28=22

Then simplify the equation:

22=22

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According to the question,

Original mean is 10 and original standard deviation is 5 . In order to find to new mean and standard deviation when each score in data set is multiplied by 5 and then 7 is added.

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