Question

5. Find x, if 9, x, 14, 18, X, X, 8, 10 and 4 have
a mean of 11.​

Answer 1

Answer:

x=12

Step-by-step explanation:

$\frac{9+14+18+8+10+3x+4}{9}$

=$\frac{63+3x}{9}$

=11

63+3x=99

3x=36

x=12.

Answer 2

9+ X+14+18+X+X+8+10+4÷9=11

63+3X÷9=11

63+3X=11×9

3X=99-63

X=36/3

X=12.