15-02-2017
Mathematics

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A wheel made 204 revolutions at 13 2/5 revolutions per minute. How many minutes did it rotate?

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15-02-2017

[tex]\bf 204\textit{ revolutions at }13\frac{2}{5} r/min \implies \cfrac{204\ r}{13\frac{2}{5}\ \frac{r}{min}}\implies \cfrac{204\ r}{\frac{67\ r}{5\ min}} \\\\\\ \cfrac{204\ r}{1}\cdot \cfrac{5\ min}{67\ r}\implies \boxed{?}[/tex]

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