[tex]\begin{array}{ccllll}
amps&volts
\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
13&540\\
2.6&x
\end{array}\implies \cfrac{13}{2}=\cfrac{540}{x}\impliedby \textit{solve for "x"}[/tex]