Question

Find the missing number if the average is 7.

6 and
A) 8
B) 10
C) 12
D) none of the above

Answer 1

Answer: a 8

i forgot how I got that answer

Answer 2

A) 8

Explanation:

The average of two numbers is 7.

6 and x have an average of 7.

sum of terms / number of terms = average

(6 + x)/2 = 7

6+x = 14

x = 8

The number is 8.