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IrinaK [193]
2 years ago
8

If the average (arithmetic mean ) of 2,7, and x is 12, what is the value of x?

Mathematics
2 answers:
masya89 [10]2 years ago
7 0

Answer:

x=27

Step-by-step explanation:

The mean is add all the numbers and divide by the number of points

(2+7+x)/3 =12

Multiply each side by 3

(2+7+x)/3 *3 =12*3

2+7+x = 36

Combine like terms

9+x = 36

Subtract 9 from each side

9+x-9 = 36-9

x = 27

nirvana33 [79]2 years ago
6 0

Answer:

X=27

Step-by-step explanation:

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