Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.5 - Problem Solving and Using Formulas - Exercise Set - Page 68: 45

Answer

width of the frame =2 inch

Work Step by Step

Since we are given that perimeter = 72 inch Formula to calculate the perimeter of a painting with frame is : Perimeter= 2( Length + Width) or, $P= 2(l+w)$ Thus, $72= 2 (12+2x+16+2x)$ or, $72=2(28+4x)$ or, $72=56+8x$ Thus, $x=2$ inch Hence, width of the frame =2 inch
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