Question

If themean of the numbers 11,10,8,x,y,9is 10, then the value of x+y

Answer 1

Answer:

21

Step-by-step explanation:

(11+10+8+x+y+10)/6=10

x+y=60-39

x+y=21

Answer 2

Answer:

22

Step-by-step explanation:

the answer is here..

mean = sum of all numbers / total numbers

10 = 11+10+8+x+y+9 / 6

10*6 = 38+x+y

60 =38+x+y

x+y =60-38

x+y =22