document.write( "Question 780636: I can not use algebra.\r
\n" ); document.write( "\n" ); document.write( "I painted a picture that is 4 inches longer than it is wide. If I put a 1 inch frame around my picture, the area increases by 48 square inches. What are the dimensions of my picture?
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Algebra.Com's Answer #475646 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!
You said, \"I can not use algebra.\"
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\n" ); document.write( "Do you mean, you have too much difficulty trying to use algebra? An analysis of the exercise can be shown and explained, and will use algebra.
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\n" ); document.write( "Do you mean, the use of algebra is not permitted for this exercise? That prohibition is unnacceptable; algebra is very well suited and is expected to this exercise.\r
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\n" ); document.write( "\n" ); document.write( "Painted picture, w for width, y for length.
\n" ); document.write( "\"y=4%2Bw.\"
\n" ); document.write( "Area for just the picture is \"+highlight%28wy=w%284%2Bw%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "1 inche frame extends length and width to be now
\n" ); document.write( "width = w+1+1=\"highlight%28w%2B2%29\"
\n" ); document.write( "length = y+1+1=(4+w)+1+1=\"highlight%28w%2B6%29\"
\n" ); document.write( "--------
\n" ); document.write( "Think about those distance size changes very carefully before continuing. We add 2, not just 1. We extend that 1 inch in TWO opposite directions, so that the 1 inche distance frame-width goes all the way around the picture.\r
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\n" ); document.write( "\n" ); document.write( "The extended area is \"%28w%2B2%29%28w%2B6%29\"\r
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\n" ); document.write( "\n" ); document.write( "Given is that the area increases by 48 square inches. This means the difference between the two areas is 48 square inches.\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28%28w%2B2%29%28w%2B6%29-w%284%2Bw%29=48%29\"
\n" ); document.write( "That appears to be a quadratic equation and just needs simplification. Some help in starting through that is,...
\n" ); document.write( "\"w%5E2%2B2w%2B6w%2B12-w%5E2-4w=48\"
\n" ); document.write( "In fact this will not remain as a quadratic equation, since w^2-w^2=0.
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\n" ); document.write( "\"8w-4w=48\"
\n" ); document.write( "\"4w=48\"
\n" ); document.write( "\"highlight%28w=12%29\"
\n" ); document.write( "and you can compute the y value yourself.
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