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19-09-2018
Mathematics

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Find the perimeter of the rectangle

Find the perimeter of the rectangle class=

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19-09-2018

The formula of a perimeter of a rectangle:

[tex]P=2(l+w)[/tex]

l - length

w - width

We have:

[tex]l=2x-3,\ w=x+4[/tex]

Substitute:

[tex]P=2(2x-3+x+4)=2(3x+1)\\\\_{\text{use distributive property}}\\\\=(2)(3x)+(2)(1)=\boxed{6x+2}[/tex]

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