Question

The width of a rectangle is one third of the length
the perimeter is 96 what is the width

Answer 1

W= 12

Explanation:

Let w be the width and l the length.

1) w = 1/3l

If we rewrite this we get that l is equal to 3w

2) 2(w+l)=96

If we rewrite this we get that w+l= 48

3) Now we can substitute 3w in for l in the above equation to get w+(3w) = 48

4) We can combine like terms to get 4w= 48

5) Divide 48 by 4 to get 12