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Math Help - bottles on the shelf

  1. #1
    amandamom
    Guest

    Help!

    Question:

    Currently i have 12 bottles of water on shelf, i need to keep a minumum of 6 bottles on shelf. average sales per day are 2 per day. what is the minimum bottles i would need to order for 7 days?

    14??

    Thank you,
    Amanda
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  2. #2
    MHF Contributor
    Joined
    Apr 2005
    Posts
    1,631
    Quote Originally Posted by amandamom
    Question:

    Currently i have 12 bottles of water on shelf, i need to keep a minumum of 6 bottles on shelf. average sales per day are 2 per day. what is the minimum bottles i would need to order for 7 days?

    14??

    Thank you,
    Amanda
    Here is one way,

    Good for 7 days:
    At 2 bottles per day, 7*2 = 14 bottles sales
    Minimum of 6 bottles always on shelf
    Add those up and you need minimum of 20 bottles for the next 7 days,

    You have now 12 bottles.
    20 minus 12 is 8 bottles
    Therefore you need to order minimum of 8 bottles. -------answer.

    !4 bottles is okay, but that is not the minimum.
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