Respuesta :

Let's say 9 is the 100% and then we will found the requested porcentage

[tex]\begin{gathered} \frac{9}{100}=\frac{18}{x} \\ 9x=18\cdot100 \\ x=\frac{1800}{9} \\ x=200 \end{gathered}[/tex]

Therefore, 18 is the 200% of 9

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