SOLUTION: the perimeter of a rectangle is 108 cm. Width of the rectangle is 6cm less than the length. find the dimensions of the rectanlge

Algebra ->  Human-and-algebraic-language -> SOLUTION: the perimeter of a rectangle is 108 cm. Width of the rectangle is 6cm less than the length. find the dimensions of the rectanlge      Log On


   

Question 386354: the perimeter of a rectangle is 108 cm. Width of the rectangle is 6cm less than the length. find the dimensions of the rectanlge
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
length = x cm
width = x-6 cm
perimeter = 108cm
..
2*(l+w)=perimeter
...
2(x+x-6)=108
2(2x-6)=108
4x-12=108
add 12 to both sides
4x=108+12
4x=120
/4
%28highlight%28x=30%29%29 cm, length
%28highlight%28width=24%29%29cm
...
m.ananth@hotmail.ca