document.write( "Question 280887: Find the dimensions of a rectangle with a perimeter of 90 cm if the length is 5 cm less than four times the width. \n" ); document.write( "
Algebra.Com's Answer #204152 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! L=4W-5 \n" ); document.write( "2L+2W=90 \n" ); document.write( "2(4W-5)+2W=90 \n" ); document.write( "8W-10+2W=90 \n" ); document.write( "10W=90+10 \n" ); document.write( "10W=100 \n" ); document.write( "WE=100/10 \n" ); document.write( "W=10 ANS. FOR THE WIDTH. \n" ); document.write( "L=4*10-5=40-5=35 ANS. FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "2*35+2*10=90 \n" ); document.write( "70+20=90 \n" ); document.write( "90=90 \n" ); document.write( " |