Question

length = 6 ft. area: 42 sq. ft. width = ? ft. area of rectangle = lw l = length w = width ft. = feet sq. ft. = square feet

Explanation:

Step1: Recall area formula

The area formula for a rectangle is $A = lw$, where $A$ is area, $l$ is length and $w$ is width.

Step2: Rearrange formula for width

We can rewrite the formula to solve for $w$ as $w=\frac{A}{l}$.

Step3: Substitute values

Given $A = 42$ square - feet and $l = 6$ feet, substituting into the formula gives $w=\frac{42}{6}$.

Step4: Calculate width

$\frac{42}{6}=7$ feet.

Answer:

7 ft.