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The mean of 8 numbers is 4,6,4,7,(x),(x+1),8 and 2 is 5. Find x
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The mean of 8 numbers is 4,6,4,7,(x),(x+1),8 and 2 is 5. Find x
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Mathematics
5 years
2021-07-25T06:44:32+00:00
2021-07-25T06:44:32+00:00 1 Answers
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Answer:
X=2.5
Step-by-step explanation:
4+6+4+7+X+(X+1)+8+2/8=5
31+X+(X+1)/8=5
40=31+X+(X+1)
9=X^2+X
X=2.5