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15 September, 07:34

The local library had a sale to get rid of the books that were slightly damaged it's on paper back books for two dollars and hardcover books for five dollars each the library raised $271 and sold 89 bucks how many hardcover books were sold

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  1. 15 September, 07:39
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    31

    Step-by-step explanation:

    Let h hardcover books sold and p paperbacks sold

    total of 89 books, so that we can write:

    h + p = 89

    or p = 89 - h

    Also, paperbacks cost 2 and hardcovers cost 5 for a total of 271, so we can write:

    2p + 5h = 271

    Now replacing first on this equation, we can solve for h:

    2p + 5h = 271

    2 (89 - h) + 5h = 271

    178 - 2h + 5h = 271

    3h = 93

    h = 93/3

    h = 31

    Hence,

    31 hardcover books were sold
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