SOLUTION: A rectangle has an area of 98 cm2. It length is double its width. How wide is it?

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: A rectangle has an area of 98 cm2. It length is double its width. How wide is it?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 718861: A rectangle has an area of 98 cm2. It length is double its width. How wide is it?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
A rectangle has an area of 98 cm2. It length is double its width. How wide is it?
let W=width
2W=length
area=length*width
98=2W*W=2W^2
W^2=98/2=49
W=√49=7
How wide is rectangle=7 cm