document.write( "Question 532396: You are building a rectangular field and want to make a walkway around the edge. The field is 360 ft by 160ft, and the area of the entire area (field&walkway) is 71,796 sq ft.\r
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document.write( "What is the width of the walkway?
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document.write( "What is the area of the walkway? \n" );
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Algebra.Com's Answer #350843 by Don Malabag(3)![]() ![]() ![]() You can put this solution on YOUR website! A(walkway)=A(total)-A(field) \n" ); document.write( "A= 71796ft^2-{(360ft)(160ft)} \n" ); document.write( "A=71796ft^2-57600ft^2 \n" ); document.write( "A=14196\r \n" ); document.write( "\n" ); document.write( "W(walkway)=(360+x)(160+x)=71796ft^2 \n" ); document.write( "W=x^2+520x+57600=71796 \n" ); document.write( "W=x^2+520x+57600-71796=0 \n" ); document.write( "W=x^2+520x-14196=0 \n" ); document.write( "(x+546)(x-26) \n" ); document.write( "x=-546; x=26 \n" ); document.write( "W(walkway)=26 ft. \n" ); document.write( " |