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The length of a rectangle is 3 times its width. The perimeter of the rectangle is 80 cm. If x = length and y=width, x + y = 80 23y 2 + y = 80 = +y 2x + 2 = 80 Зу T- 2x + 2y = 80 21

Answer :

x = length

y = width

we have:

x = 3y

the perimeter is

[tex]2x+2y=80[/tex]

then

[tex]\begin{gathered} 2(3y)+2y=80 \\ \end{gathered}[/tex]

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