document.write( "Question 260447: the sides of a rectangle are in the ratio 5:7 and the perimeter of the rectangle is 96cm. What is the area of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #191836 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 5N+7N=12N \n" ); document.write( "2*5N+2*7N=96 \n" ); document.write( "10N+14N=96 \n" ); document.write( "24N=96 \n" ); document.write( "N=96/24 \n" ); document.write( "N=4 ANS. FOR THE MULTIPLIER \n" ); document.write( "5*4=20 ANS. FOR ONE SIDE \n" ); document.write( "7*4=28 ANS. FOR THE OTHER SIDE \n" ); document.write( "PROOF \n" ); document.write( "2*20+2*28=96 \n" ); document.write( "40+56=96 \n" ); document.write( "96=96 \n" ); document.write( "20*28=560 cm^2 is the area. \n" ); document.write( " |