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13 July, 18:02

The library at school is organized by fiction and nonfiction books. There are 3 nonfiction books for every 7 fiction books. How many total books are there if the library has 240 nonfiction books?

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  1. 13 July, 19:34
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    There are 800 total books
  2. 13 July, 21:38
    0
    There are 800 total books.

    Step-by-step explanation:

    In order to find this, we need to create a proportion that compares the number of non-fiction books to the total. First would be the scale factor and the second would be the total.

    3/10 = 240/x

    Now we can cross multiply to solve

    240*10 = 3 * x

    2400 = 3x

    800 = x
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