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Ten families have an average of 2 children per family. If exactly two of these families are childless, what is the average number of children in the families with children? Express your answer as a decimal to the nearest tenth.

 Jul 11, 2020
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Ten families average 2 children per family

    then there are 20 children

       if two families have no children then there are EIGHT families with 20 children

           for an average    20 children/ 2 families = 2.5 children/family

 Jul 11, 2020

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