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The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fraction 2 over 7 unit and the width is Fraction 3 over 7 unit, what is the perimeter of the rectangle in units?

Respuesta :

For this problem, you will do 2(2/7+3/7). Your answer should be 10/7. Or 1.428571



I hope my answer helps!

[tex] \bf 2(L+w)~~
\begin{cases}
L=\frac{2}{7}\\\\
w=\frac{3}{7}
\end{cases}\implies 2\left(\cfrac{2}{7}+\cfrac{3}{7} \right)\implies 2\left( \cfrac{5}{7} \right)\implies \cfrac{10}{7}\implies 1\frac{3}{7} [/tex]

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