Question

What is the width of a rectangular room with an are 90 square feet and a length of 9 feet

Answer 1

$A=lw\Rightarrow w=\frac{A}{l}=\frac{90}{9}=10\: ft$

Answer 2

Answer:

10 ft

Step-by-step explanation:

Area of a rectangular room is

A = l*w

We know the area and the length

90 = 9*w

Divide by 9

90/9 = 9w/9

10 =w

The width is 10 feet