sherTalakill sherTalakill

10-09-2016
Mathematics

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determine the mean of the numbers 7, 5, 5, 2, 8 and 7. if two additional numbers 2 and x, reduce the mean by 1, find x

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texaschic101 texaschic101

10-09-2016

(7 + 5 + 5 + 2 + 8 + 7) / 6 = 34/6 = 5.67

(34 + 2 + x) / 8 = 5.67 - 1
(36 + x) / 8 = 4.67
36 + x = 4.67 * 8
36 + x = 37.36
x = 37.36 - 36
x = 1.36

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