mkbrewster11 mkbrewster11

18-12-2014
Mathematics

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Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books does he have now?

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konrad509 konrad509

18-12-2014

[tex]x+6=x+0.12x\\ 0.12x=6\\ x=50\\ 50+6=\boxed{56}[/tex]

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