Question

the mean of 16,12,8,k,10and 9 is 12 find the value of k​(full explanation)

Answer 1

Answer:

k = 17

Step-by-step explanation:

The mean of 16 , 12 , 8 , k , 10 and 9 is (16 + 12 + 8 + k + 10 + 9) / 6

Also, the mean is given to be 12.

So,  (16 + 12 + 8 + k + 10 + 9)  = 12

                        6

(16 + 12 + 8 + k + 10 + 9)  = 12 * 6

          55 + k                   =  72

                  k                    =  72 -55

                                k      =  17

Answer 2

Answer:

Step-by-step explanation:

Sum = 16 + 12 + 8 + k + 11 + 10 + 9 = 66 + k

Mean = 12

Sum = 12 x 7 = 84

Find the value of k:

Sum = 66 + k

Sum = 84

therefore 66 + k = 84

66 + k = 84

k = 84 - 66

k = 18

Answer: The value of k is 18