document.write( "Question 430036: picture frame is 22 cm by 15 cm. If 198 cm2 of picture shows, what would the width of the frame if all sides are even? \n" ); document.write( "
Algebra.Com's Answer #298655 by jorel1380(3719)\"\" \"About 
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Let X equal the width of our frame. 22-2x equals the area inside the frame that shows a picture (It's 2x because we have frame surrounding both sides of the picture). Likewise, its length is 15-2x, since the width of the frame is consistent throughout. Thus:\r
\n" ); document.write( "\n" ); document.write( "(22-2x)(15-2x)=198
\n" ); document.write( "330-74x+4x2=198
\n" ); document.write( "4x2-74x+132=0
\n" ); document.write( "2x2-37x+66=0
\n" ); document.write( "(2x-33)(x-2)=0\r
\n" ); document.write( "\n" ); document.write( "If we use x=2, we see our equation works. 22-2x=18, 15-2x=11---so our picture is 18X11, which gives us 198cm2, and our frame is 2cm wide.
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