Question

the average of a list 10 numbers is 0 if 72 and -12 are added to the list. what will be its new average

Answer 1

Answer:

7

Step-by-step explanation: let x+y=10 if 72 and -12 are added to the list the average will be [(x+72)+(-12+y)]/10= (x+y+60)/10= (x+y)/10 + 60/10 = 1+6=7