Well we know that area is length x width, so let's start with this equation.
A = l x w
Now we plug in what we know to figure out the width. We know that the area is 160 square feet, and the length is 16 feet.
160 = 16 x w
Now we use some basic algebra to isolate the w and find our answer.
160/16 = 16 x w/16
10 = w
Now we know the length is 16 ft and the width is 10 ft. We can find the perimeter by using the formula for perimeter.
P = 2l + 2w
Now let's plug it all in to find P (perimeter).
P = 2(16) + 2(10)
P = 32 + 20
P = 52
So our answer is the width of Malcolm's room is 10ft, and the perimeter of his room is 52ft.
Hope this helps and good luck!
