SOLUTION: the length of a rectangle is increased by 80%. by what percent would be the width have to be decreased to maintain the same area?

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: the length of a rectangle is increased by 80%. by what percent would be the width have to be decreased to maintain the same area?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 351083: the length of a rectangle is increased by 80%. by what percent would be the width have to be decreased to maintain the same area?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Lets make the rectangle a 10 by 10 square with an area of 100
Increase one side to 18.
18x=100
x=5.556
10-x=5.556
x=4.444
4.444/10=44.44% decrease in the width to maintain the area.
.
Ed