Question

If the mean of 4, 9, 10 and is 8, then find the value of .
answer fast pls​

Answer 1

Answer:

(4+9+10+x)÷2=8

23+x÷2=8

23+x=8×2

x=16-23

x= -7

Answer 2

Answer:

9

Step-by-step explanation:

let .... = x

A.T.Q.

(4+9+10+x)/4 = 8

23+x = 8×4

x = 32-23

x = 9