Question

Students sell 80% of the books at a book slae. They sell 48 books in all. How many books are at the book sale? Show your work.

Answers

  1. Answer:

    60 books were at the book sale

    Step-by-step explanation:

    Let

    x = total books at the book sale

    Percentage of books sold = 80% of x

    = 80/100 * x

    = 0.8x

    Number of books sold = 48

    Therefore,

    0.8x = 48

    Divide both sides by 0.8

    0.8x / 0.8 = 48 / 0.8

    x = 60 books

    x = total books at the book sale = 60 books

    Number of books unsold = Total books at the book sale – number of books sold

    = 60 – 48

    = 12

    Number of books unsold = 12 books

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