Question

In the united states, 1313 out of every 2020 cans are recycled. What percent of cans are recycled

Answer 1

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

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