document.write( "Question 1025044: The perimeter of a rectangle of a wood design is 90 feet. The design length is 5 feet less than four times it's width. Determine the dimensions of the wood design \n" ); document.write( "
Algebra.Com's Answer #640346 by addingup(3677)![]() ![]() You can put this solution on YOUR website! 2l+2w = 90 (1) \n" ); document.write( "and \n" ); document.write( "l = 4w-5 Use this value for l in equation (1): \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \n" ); document.write( "2(4w-5)+2w = 90 \n" ); document.write( "8w-10+2w = 90 \n" ); document.write( "10w = 100 \n" ); document.write( "w = 10 so this is the width. And the length: \n" ); document.write( "l = 4w-5 = 4(10)-5 = 40-5 = 35 The length is 35 \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \n" ); document.write( "Check: \n" ); document.write( "2(35)+2(10) = 70+20 = 90 Correct. \n" ); document.write( " \n" ); document.write( " |