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Mathematics 12 Online
OpenStudy (monsuirahab):

The perimeter of a rectangle is 40. The length of the rectangle is 3 times greater than its width. What is the width of the rectangle?

OpenStudy (chillout):

\(\begin{cases} 2x+2y=40 \\ 3x=y\end{cases}\)

OpenStudy (chillout):

|dw:1441035617686:dw|

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