SOLUTION: The width of a rectangle is one half its length. The perimeter of the rectangle 54cm. What are the width and length of the rectangle?

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Question 53237This question is from textbook Prentice Hall Mathematics Algebra 1
: The width of a rectangle is one half its length. The perimeter of the rectangle 54cm. What are the width and length of the rectangle? This question is from textbook Prentice Hall Mathematics Algebra 1

Answer by pwt(2) About Me  (Show Source):
You can put this solution on YOUR website!
If length is 2u, width would be 1u
area=2 length+2 width=4u+2u=6u
54 divided by 6u=9
1u=9
width=9cm
2u=9+9=18
length=18cm