Question

if the mean of 7, 9, 11, 13, x, 21 is 13. Find the value of x

Answer 1

Answer:

the answer of the question x=17

Answer 2

Step-by-step explanation:

(7+9+11+13+X+21)/6 = 13

61+X = 13×6

X= 78-61

X=17