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16 March, 01:40

A store gives away gift bags during a sale. Of these gift bags, 30% are green, 20% are yellow, and 50% are blue. The average number of items in each green bag is 10. The average number of items in each yellow bag is 5. The average number of items in each blue bag is 8. What is the average number of items in all the gift bags? Enter your answer as a decimal in the box.

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  1. 16 March, 02:09
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    8 items per bad

    Step-by-step explanation:

    30% are green and hold an average of 10,

    20% are yellow and hold an average of 5

    50% are blue and hold an average of 8,

    all together they hold an average of ...

    [0.3 (10) + 0.2 (5) + 0.5 (8) ]

    [ 3 + 1 + 4] = 8 items on average

    Say there's 10 total gift bags given out, then

    3 of them will be green, each with 10 items for a total of 30 items,

    2 of them will be yellow, each with 5 items, for a total of 10 items,

    5 of them will be blue, each with 8 items, for a total of 40 items.

    All together there are 10 bags, and 80 items, for an average of

    80/10 = 8 items per bag

    These numbers will stay the same no matter how many bags are given out
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