2 years ago

Simplify 9^{2} / 9^{7}

Mathematics

1 answer:

monitta2 years ago

8 0

It is 2/18 I hope I can help

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3 years ago

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Irina18 [472]

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Step-by-step explanation:

Let's solve this problem step-by-step. The library had 1,500 books in 2011. The ratio of books in 2011 and in 2012 is 1:2. Therefore, let the number of books in 2012 be $x$ .

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