SOLUTION: If the length of the rectangle is twice the width and the perimeter of the rectangle is 30cm. What is the length and width of the rectangle? This is all that I've gotten: L=2W

Algebra ->  Expressions-with-variables -> SOLUTION: If the length of the rectangle is twice the width and the perimeter of the rectangle is 30cm. What is the length and width of the rectangle? This is all that I've gotten: L=2W      Log On


   



Question 291347: If the length of the rectangle is twice the width and the perimeter of the rectangle is 30cm. What is the length and width of the rectangle?
This is all that I've gotten: L=2W and 2L+2W=30

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
You now have 2 equations with two unknowns . Good job. Now solve them !
How do you solve two equations in two unknowns?
Substitution or elimination.
What can you substitute.Substitute 2W for L in the second equation or L for 2W