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number patterns

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joshua is raising fruit flies for a science project.at the begining of the first day,he had 4 fruit flies,his fruit flies double in number each day.how many fruit flies does he have at the end of three days

  • number patterns -

    beginning of first day ---4
    end of first day ---8
    end of second day --- 16
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    mmmhhh.

  • number patterns -

    12

  • number patterns -

    argggg!!

    don't the numbers double??

  • number patterns -

    Mona,
    The numbers double. As Reiny said, the first day there's 4, the next day 8, the next day 16. Add those three numbers together for the total amount.

  • number patterns -

    1st day = 4
    2nd day = 8( double of 4)
    3rd day = 16 ( double of 8)

  • Math -

    4 +4=8 +8=16 answer

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