if we take 140 to be the 100%, how much is 35 in percentage off of it?
[tex]\bf \begin{array}{ccllll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
140&100\\
35&x
\end{array}\implies \cfrac{140}{35}=\cfrac{100}{x}[/tex]
solve for "x".
