SOLUTION: The length of a rectangle is 4 m more than the width. The area of the rectangle is 45 m(squared). find the length and width.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The length of a rectangle is 4 m more than the width. The area of the rectangle is 45 m(squared). find the length and width.      Log On


   

Question 24446: The length of a rectangle is 4 m more than the width. The area of the rectangle is 45 m(squared). find the length and width.
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
Length = 4+x
Width = x
Area = 45m%5E2
Area = length x width,

(x)(x+4)=45
x%5E2%2B4x-45=0
Can yo solve from there, if not mail me back.
You'll get x = 5
5+4 = 9
Hence, the length is 9m and the width is 5m.
Paul.