Question

If the mean of three numbers is 7 and two of the numbers are 6 and 8, what is the third number?

Answer 1

Answer:

Mean = 7

Two numbers = 6 and 8 .

Let the third number = x

$average = \frac{sum}{number \: of \: integers}$

6+8+x/3=7

14+x=7×3

x = 21-14

x= 7

Step-by-step explanation:

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Answer 2

7

(6+8+x)/3

21=14+x

21-14=x

x=7