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=(A)/(l)=(90)/(9)=10\: ft`

Answer 2

10 ft

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