document.write( "Question 963133: The length of a rectangle is
\n" );
document.write( "3 ft
\n" );
document.write( " more than twice the width, and the area of the rectangle is
\n" );
document.write( "54 ft2
\n" );
document.write( ". Find the dimensions of the rectangle. \n" );
document.write( "
Algebra.Com's Answer #588405 by amarjeeth123(569)![]() ![]() ![]() You can put this solution on YOUR website! Let the width be x feet. \n" ); document.write( "Then the length is 2x+3 feet. \n" ); document.write( "Area of the rectangle is 54 ft2. \n" ); document.write( "Area=length*width \n" ); document.write( "x(2x+3)=54 \n" ); document.write( "2x^2+3x-54=0 \n" ); document.write( "2x^2+12x-9x-54=0 \n" ); document.write( "2x(x+6)-9(x+6)=0 \n" ); document.write( "(2x-9)(x+6)=0 \n" ); document.write( "x=9/2 is the solution as x cannot be negative. \n" ); document.write( "The width is 4.5 feet. \n" ); document.write( "The length is 12 feet. \n" ); document.write( " \n" ); document.write( " |