Mrs. Gibbs goes to the store to buy AA and 9V bat

Mrs. Gibbs goes to the store to buy AA and 9V batteries. The store has 12 AA batteries and 15 9V batteries in stock. Mrs. Gibbs needs at least 6 AA batteries. In all, she wants to buy at least 20 batteries. Mrs. Gibbs buys 7 AA batteries. How many 9V batteries could she buy?
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Answers:

  • *** ***** *** ** ** Batteries *** ** 9V batteries
    Mrs
    ***** Needs ** ***** * AA ********** Total
    *********
    ****** ** *** ***** ** 20 Batteries Mrs *****
    *******
    AA ********** *** **** **
    Batteries
    *** *** ***** * ********** * *
    **
    ********** ** ** ********** So Mrs Gibbs bought 13
    **
    *********

    $10.00

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