document.write( "Question 302140: Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution.
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document.write( "A rectangular flower bed with width 12 feet and length 15 feet is going to have a walkway of uniform width on all sides. If the area of the walkway is 90 square feet, how wide is the walkway \n" );
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Algebra.Com's Answer #216654 by mananth(16946)![]() ![]() You can put this solution on YOUR website! A rectangular flower bed with width 12 feet and length 15 feet is going to have a walkway of uniform width on all sides. If the area of the walkway is 90 square feet, how wide is the walkway\r \n" ); document.write( "\n" ); document.write( "let the width of the walkway be x feet\r \n" ); document.write( "\n" ); document.write( "flowerbed length = 15 feet\r \n" ); document.write( "\n" ); document.write( "flower bed width = 12 feet\r \n" ); document.write( "\n" ); document.write( "length of plot with walkway = 15+2x\r \n" ); document.write( "\n" ); document.write( "width of plot with walkway = 12+2x\r \n" ); document.write( "\n" ); document.write( "Area of plot - area of flower bed = area of walkaway\r \n" ); document.write( "\n" ); document.write( "(12+2x)(15+2x)- 12*15 = 90\r \n" ); document.write( "\n" ); document.write( "180+24x+30x+4x^2-180=90\r \n" ); document.write( "\n" ); document.write( "4x^2+54x-90=0\r \n" ); document.write( "\n" ); document.write( "4x^2+60x-6x+90=0\r \n" ); document.write( "\n" ); document.write( "4x(x+15)-6(x+15)=0\r \n" ); document.write( "\n" ); document.write( "(x+15)(4x-6)=0\r \n" ); document.write( "\n" ); document.write( "x=-15 OR x=3/2\r \n" ); document.write( "\n" ); document.write( "So the width of the walkaway = 1.5 feet\r \n" ); document.write( "\n" ); document.write( "Ananth\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |