12 ft wide
Step-by-step explanation:
The cost per square foot = $2
The cost to recarpet the room = $312
length of the room = 13 feet
width = ?
First, we need to find the number of squre foot that will amount to $312
Since $2 = 1 ft²
$132 = 132/2
$132 = 156 square foot
square foot indicates we are dealing with area
Area of room = length × width
Area of the room = 156 square foot
156 = 13 ft × width
width = 156 ft²/13 ft
width = 12 ft
The room is 12 ft wide