document.write( "Question 891019: The area of a rectangle is 40sqaure inches the boarder around the rectangle is 26 inches what is the length and width of the rectangle
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Algebra.Com's Answer #539459 by josgarithmetic(39617)\"\" \"About 
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\"border around\" is perimeter.\r
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\n" ); document.write( "\n" ); document.write( "w for width
\n" ); document.write( "L for length\r
\n" ); document.write( "\n" ); document.write( "\"wL=40\" and \"2w%2B2L=26\"
\n" ); document.write( "Some simplification and then substitution:
\n" ); document.write( "\"w%2BL=13\"
\n" ); document.write( "\"L=13-w\"\r
\n" ); document.write( "\n" ); document.write( "-
\n" ); document.write( "\"w%2813-w%29=40\"
\n" ); document.write( "\"-w%5E2%2B13w=40\"
\n" ); document.write( "\"w%5E2-13w=-40\"
\n" ); document.write( "\"w%5E2-13w%2B40=0\"
\n" ); document.write( "Discriminant is \"169-4%2A40=169-160=highlight_green%289%29\"
\n" ); document.write( "\"w=%2813%2B-+3%29%2F2\"
\n" ); document.write( "\"w=8\" or \"w=5\"\r
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\n" ); document.write( "\n" ); document.write( "In this case, either dimension is 5 and the other dimension is 8.
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