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Mathematics 14 Online
OpenStudy (anonymous):

The libary bought 135 books in one month. if 20% of those books were fiction, how many books bought that month were nonfiction?

OpenStudy (anonymous):

What's the equation? It's been a while

OpenStudy (anonymous):

its a proportion to solve percent problems

OpenStudy (magbak):

theres no equation and the proportion is 135 x .2 then the answer of that is is used to creat the proportion that is 27/20= x/80

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