document.write( "Question 838411: A rectangular piece of metal has an area of 18 square centimeters. Its perimeter is 18 centimeters. What are the dimensions of the piece? \n" ); document.write( "
Algebra.Com's Answer #505107 by edjones(8007)![]() ![]() You can put this solution on YOUR website! L*w=18 \n" ); document.write( ". \n" ); document.write( "2L+2w=18 \n" ); document.write( "2L=18-2w \n" ); document.write( "L=9-w \n" ); document.write( ". \n" ); document.write( "w(9-w)=18 \n" ); document.write( "9w-w^2=18 \n" ); document.write( "w^2-9w+18=0 \n" ); document.write( "(w-6)(w-3)=0 \n" ); document.write( "L=6 and w=3 or vice versa. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |