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podryga [215]
3 years ago
5

The mean of a particular set of 7 numbers is 4. Six of the numbers in the set are known: 1,2,2,5,7,and 8.

Mathematics
1 answer:
Setler [38]3 years ago
8 0
\dfrac{1+2+2+5+7+8+x}{7}=4\\
\dfrac{25+x}{7}=4\\
25+x=28\\
\boxed{x=3}

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HAY THERE!

ACCORDING TO QUESTION:-
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