document.write( "Question 415343: The lenght of a rectangle is one less than twice the width. If its perimeter is 34\", what are the dimensions ? \n" ); document.write( "
Algebra.Com's Answer #291199 by htmentor(1343)![]() ![]() You can put this solution on YOUR website! (1) 2l + 2w = 34, where l = length, w = width \n" ); document.write( "(2) 2w - 1 = l, which states that the length is ONE less than TWICE the width \n" ); document.write( "From (2), 2w = l + 1 \n" ); document.write( "Substituting into (1) gives 2l + l + 1 = 34, or 3l + 1 = 34 \n" ); document.write( "Solving for l gives l = 11. \n" ); document.write( "Using (2), 2w - 1 = 11, or w = 12/2 = 6. \n" ); document.write( "Answers: length = 11, width = 6 \n" ); document.write( " |