Use an equation to solve the problem.
-A rectangle has a perimeter of 120 feet. The width is 4 times the length. What is the length of the rectangle?
A) $12 \mathrm{ft}$
B) $48 \mathrm{ft}$
C) $3 \mathrm{ft}$
D) $30 \mathrm{ft}$

Question

Quizplus · Accepted Answer

The perimeter of a rectangle is given by $2l + 2w = 120$, where $l$ is the length and $w$ is the width. Given $w = 4l$, substituting into the perimeter equation gives $2l + 2(4l) = 120$, simplifying to $10l = 120$, and solving for $l$ gives $l = 12$.

Use an Equation to Solve the Problem 12ft12 \mathrm{ft}12ft B) 48ft48 \mathrm{ft}48ft

Use an Equation to Solve the Problem $12 \mathrm{ft}$ B) $48 \mathrm{ft}$