marytidwell29 marytidwell29

30-01-2017
Mathematics

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The length of a rectangle is four time the width. if the area of the rectangle is 16 square inches, what is the length and the width

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jdoe0001 jdoe0001

30-01-2017

[tex]\bf \textit{area of a rectangle}=l\cdot w\qquad \begin{cases} l=length\implies 4\cdot w\implies 4w\\ w=width\\ --------------\\ area=16 \end{cases} \\ \quad \\ 16=(4w)w\impliedby \textit{solve for "w"}[/tex]

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