document.write( "Question 633835: dimensions of a rectangle if the width is 3 meters less than the length and the area is 40 cubic meters \n" ); document.write( "
Algebra.Com's Answer #399189 by checkley79(3341) ![]() You can put this solution on YOUR website! L*W=AREA. \n" ); document.write( "L=X \n" ); document.write( "W=X-3 \n" ); document.write( "X*(X-3)=40 \n" ); document.write( "X^2-3X-40=0 \n" ); document.write( "(X-8)(X+5)=0 \n" ); document.write( "X-8=0 \n" ); document.write( "X=8 ANS. FOR THE LENGTH. \n" ); document.write( "W=8-3=5 ANS. FOR THE WIDTH. \n" ); document.write( "PROOF: \n" ); document.write( "8*5=40 \n" ); document.write( "40=40 \n" ); document.write( " \n" ); document.write( " |