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16 March, 06:19

The mean of this data is 8 what two numbers could go in the blanks

12,4,9,13,7,11,5,2,-,-

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  1. 16 March, 07:46
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    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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