ksjohnson1102 ksjohnson1102
  • 26-10-2017
  • Mathematics
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at the library, you find 9 books on a certain topic. the librarian tells you that 55% of the books on this topic have been signed out. how many books does the library have a available on the topic?

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Piinoy
Piinoy Piinoy
  • 26-10-2017
Multiply 9 books by 55% by doing

9 x .55 = 4.95

We can't have 4.95 books, though so it rounds down to 4 because you can't just add another .05.
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