Question

Here are three numbers:

5 , 7 , 9

Show that the mean of these three numbers is 7.

Answer 1

Explanation:

`average = (a + b)/(2)`

So

`(5 + 9)/( 2) = (14)/(2) = 7`

Answer 2

The mean of something is when you:
Add the numbers together and divide by the amount of numbers you have added

5+7+9 = 21
we have added 3 numbers so you do:
21/3 = 7 ✅