SOLUTION: The length of a book is 15mm less than twice its width and the perimeter is 414mm,what are the dimensions of the book?

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Question 321695: The length of a book is 15mm less than twice its width and the perimeter is 414mm,what are the dimensions of the book?
Answer by solver91311(24713) About Me  (Show Source):
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The perimeter of a rectangle is given by:



Let represent the width of the book. Then the length of the book must be , all measurements in millimeters.

So:



Solve for

John