What is the mean?

Question

4x+3,7,3x-2,9x

Answer 1

Definition of mean is the sum of terms divided by the number of terms.

 

You have 4 terms.

 

 

Mean = [(4x + 3) + 7 + (3x - 2) + 9x] / 4

 

 

Now just simplify.

Answer 2

Mean = sum / 4

 

(4x+3+7+3x-2+9x)/4

 

=(16x+8)/4

 

= 4x+2