Respuesta :

so, if we take 1.20 to be the 100%, what is 0.80 off of it anyway?

[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 1.20&100\\ 0.80&p \end{array}\implies \cfrac{1.20}{0.80}=\cfrac{100}{p}\implies p=\cfrac{0.80\cdot 100}{1.20}[/tex]

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