4 years ago

The mean of this data is 8 what two numbers could go in the blanks 12,4,9,13,7,11,5,2,-,-

1 answer:

4 0

12+4+9+13+7+11+5+2+_+_ /10= 8
x10 both sides

12+4+9+13+7+11+5+2+_+_=80
63+_+_=80
-63 both sides
_+_= 17
any two numbers that add up to 17 can go in the planks
7,10

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