document.write( "Question 763407: The length of a rectangle is 3 1/2 times it's width. Its perimeter is 108 cm. Find its length and width. choices for the width: 12, 18, 24 \n" ); document.write( "
Algebra.Com's Answer #464767 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Width = x \n" ); document.write( "Length = 7/2x \n" ); document.write( "Perimeter = 2* length + 2* width \n" ); document.write( " 108 = 2(7/2x) + 2(x) \n" ); document.write( " 108 = 7x + 2x \n" ); document.write( " 108 = 9x \n" ); document.write( " x = 12cm \n" ); document.write( "Width = 12cm \n" ); document.write( "Length = 42cms. \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |