SOLUTION: The perimeter of a rectangle is 22cm. The length is 5cm more than the width. Write and solve a system of equations to find the dimensions of the rectangle.

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: The perimeter of a rectangle is 22cm. The length is 5cm more than the width. Write and solve a system of equations to find the dimensions of the rectangle.      Log On


   

Question 1179284: The perimeter of a rectangle is 22cm. The length is 5cm more than the width. Write and solve a system of equations to find the dimensions of the rectangle.
Answer by mananth(16946) About Me  (Show Source):
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The perimeter of a rectangle is 22cm.
2(l+w)=22--------------------(1)

The length is 5cm more than the width.
l=w+5
substitute l in (1)
2(w+5+w)=22
2(2w+5)=22
4w+10=22
4w=12
w=3
if w=3 then l =8