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13 January, 10:39

The librarian's assistant is given $200 to buy a collection of books for the library. Paperback books cost $3.50 each, and hardcover books cost $8 each. The librarian wants at least 20 hardcover books for the collection. Which of the following systems correctly describes the number of paperbacks (p) and hardcover books (h) the assistant can purchase

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  1. 13 January, 10:58
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    At least 20

    8*20=160

    200-160=40

    40=money left to buy paperbacks

    so

    3.5p+8h<200

    such that

    h>20

    so grahp the 2 equations

    3.5p+8h<200

    h>20

    those are it
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