Mrs Carey is organizing her classroom libary. She has 45 fantasy books ,72 nonfiction books ,and 13 poetry books .if she can put 12 books on each shelf.how many shelves will she need for all her books?

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Answer 1 · 2018-04-24T02:10:09

#11# shelves

First, add all of her books together to see how many total she has.

#45 + 72 + 13 = 129#

She has #129# books, and since she can put #12# books on each shelf, we will divide to see how many shelves she needs:

#129/12 = 10# with #9# remaining books without a shelf

She will need #1# extra shelf for those #9# extra books, so she will need:

#10 + 1 = 11# #"shelves"#