Question

5. Find the mean of x + 3 + 5 x + 7 x + 9
and x + 11.​

Answer 1

Step-by-step explanation:

Answer

Mean of x+3,x+5,x+7,x+9,x+11.

We know, Mean is given by,

Mean=

Total number of elements

Sum of the elements

.

Here, number of observations =5.

⟹ Mean =

5

(x+3)+(x+5)+(x+7)+(x+9)+(x+11)

=

5

5x+35

=x+7.

Answer 2

Answer:

-2

Step-by-step explanation:

13x+11= x+5

13x-x=5-11

12x= -6

so.. x= -6/12

-2