SOLUTION: The length of a rectangle is 40% more than its width. Its area is 560 square centimeters.
What are the dimensions?
Algebra.Com
Question 946160:  The length of a rectangle is 40% more than its width. Its area is 560 square centimeters.
What are the dimensions? 
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
 
if the length  of a rectangle is % more than its width , then we have
 
 
 
 if its area is , then
.....substitute 
now find the length:
 
 
 
 
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