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13-11-2016
Mathematics

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if n is the average of three numbers x, 12, and 15, what is the value of x?

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2101vainilla 2101vainilla

13-11-2016

9- because it looks like 12 and 15 were multiplied by 3,
3x5= 15
3x4= 12
3x3= 9

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