SOLUTION: The area of a rectangle is 80 sq meters. the length is one more than three times the width. Find the dimensions of the rectangle. (Please show work)

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: The area of a rectangle is 80 sq meters. the length is one more than three times the width. Find the dimensions of the rectangle. (Please show work)      Log On


   

Question 807335: The area of a rectangle is 80 sq meters. the length is one more than three times the width. Find the dimensions of the rectangle.

(Please show work)
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
1) A=lw=80
2) l=3w+1


(3w+1)w=80
3w^2+w-80=0

which leads to w=5
thus l=16
rectangle is
5m by 16m