A rectangular print has a perimeter of 66 inches. The length is 9 inches greater than the width. Find the width of the print.
A) $12 \mathrm{in}$.
B) 21 in
C) $33 \mathrm{in}$.
D) $30 \mathrm{in}$.

Question

Quizplus · Accepted Answer

The perimeter of a rectangle is given by $2l + 2w = 66$, where $l$ is the length and $w$ is the width. Given $l = w + 9$, substituting $l$ in the perimeter equation gives $2(w + 9) + 2w = 66$. Solving for $w$ gives $w = 12$ inches.

A Rectangular Print Has a Perimeter of 66 Inches 12in12 \mathrm{in}12in

A Rectangular Print Has a Perimeter of 66 Inches $12 \mathrm{in}$