[tex]\bf \begin{array}{ccllll}
meters&minutes\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
7&1\\
17.5&x
\end{array}\implies \cfrac{7}{17.5}=\cfrac{1}{x}[/tex]
solve for "x"
