document.write( "Question 15384: The rectangle has a perimeter of 78 centimeters.the length of the rectangle is 11 centimeters longer than triple the width. Find the demensions of the rectangle \n" ); document.write( "
Algebra.Com's Answer #7616 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! Let x = width \n" ); document.write( "3x +11 = length\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2(x) + 2(3x+11) = 78 \n" ); document.write( "2x + 6x + 22 = 78 \n" ); document.write( "8x + 22 = 78 \n" ); document.write( "8x + 22 - 22 = 78 - 22 \n" ); document.write( "8x = 56 \n" ); document.write( "x= 7 Width \n" ); document.write( "3x+11 = 3(7) + 11 = 32 Length\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Check:\r \n" ); document.write( "\n" ); document.write( "2(7) + 2(32)= 78 \n" ); document.write( "14 + 64 = 78 \n" ); document.write( "It checks!\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 at SCC \n" ); document.write( " |