trupti4321 trupti4321

25-11-2020
Mathematics

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If the mean of 10,12,9,x and 8 is 11.Find the value of x.
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ackahedem582 ackahedem582

25-11-2020

Step-by-step explanation:

Mean = (10 + 12 + 9 + x + 8)/5

11 = (39 + x)/5

multiplying through by 5 gives:

55 = 39 + x

55 - 39 = x

hence x = 16.

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