SOLUTION: A rectangle has the lengh of both of its sides decreased by 20%. by what persent does the area decrease?

Algebra ->  Rectangles -> SOLUTION: A rectangle has the lengh of both of its sides decreased by 20%. by what persent does the area decrease?      Log On


   

Question 583355: A rectangle has the lengh of both of its sides decreased by 20%. by what persent does the area decrease?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A rectangle has the lengh of both of its sides decreased by 20%. by what persent does the area decrease?
---------------
Each side is 80% = 0.8x what it was.
Area = 0.8L*0.8W = 0.64*Area
1 - 0.64 = 0.36
= 36% decrease