document.write( "Question 227928: Suppose the length of a rectanle is 3cm longer than twice the width and that the peimeter is 90cm. Setup an equation for the perimeter involving only W the width. solve this equation algebraically to find length and find the width as well? \n" ); document.write( "
Algebra.Com's Answer #169329 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! L=2W+3 \n" ); document.write( "2L+2W=90 \n" ); document.write( "2(2W+3)+2W=90 \n" ); document.write( "4W+6+2W=90 \n" ); document.write( "6W=90-6 \n" ); document.write( "6W=84 \n" ); document.write( "W=84/6 \n" ); document.write( "W=14 ANS. FOR THE WIDTH. \n" ); document.write( "L=2*14+3=28+3=31 ANS. FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "2*31+2*14=90 \n" ); document.write( "62+28=90 \n" ); document.write( "90=90 \n" ); document.write( " |