Respuesta :
[tex]\bf \begin{array}{ccllll}
used&new\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
1&3\\
u&720
\end{array}\implies \cfrac{1}{u}=\cfrac{3}{720}\implies \cfrac{720\cdot 1}{3}=u[/tex]
Ratio of used to new is 1:3,
So in other words, the value of a used washer is 1/3 of the value of a new washer.
So you can resell a used washer for: $720/3 = $240.
So in other words, the value of a used washer is 1/3 of the value of a new washer.
So you can resell a used washer for: $720/3 = $240.