Respuesta :

if we take 20 to be the 100%, what is 13 off of it in percentage?

[tex]\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 20&100\\ 13&x \end{array}\implies \cfrac{20}{13}=\cfrac{100}{x}\implies 20x=1300\\\\\\ x=\cfrac{1300}{20}\implies x=65[/tex]

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