document.write( "Question 943237: The length of a rectangle is 6 more than the width. The area is 720 sq. ft. What is the length and width of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #575029 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! x = length in feet \n" ); document.write( "y = width in feet \n" ); document.write( "--- \n" ); document.write( "x = y + 6 \n" ); document.write( "y = x - 6 \n" ); document.write( "xy = 720 \n" ); document.write( "x(x - 6) = 720 \n" ); document.write( "xx - 6x - 720 = 0 \n" ); document.write( "--- \n" ); document.write( "the above quadratic equation is in standard form, with a=1, b=-6 and c=-720 \n" ); document.write( "--- \n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this: \n" ); document.write( "1 -6 -720 \n" ); document.write( "into this solver: http://sooeet.com/math/quadratic-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "the quadratic has two real roots at: \n" ); document.write( "--- \n" ); document.write( "x = 30 \n" ); document.write( "x = -24 \n" ); document.write( "--- \n" ); document.write( "the negative root doesn't fit the problem statement, so use the positive root: \n" ); document.write( "--- \n" ); document.write( "answer: \n" ); document.write( "x = 30 \n" ); document.write( "y = x - 6 \n" ); document.write( "y = 30 - 6 \n" ); document.write( "y = 24 \n" ); document.write( "--- \n" ); document.write( "Free algebra tutoring live chat: \n" ); document.write( "http://sooeet.com/chat.php?gn=algebra \n" ); document.write( "--- \n" ); document.write( "Solve and graph linear equations: \n" ); document.write( "http://sooeet.com/math/linear-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve quadratic equations with quadratic formula: \n" ); document.write( "http://sooeet.com/math/quadratic-formula-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables: \n" ); document.write( "http://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "--- \n" ); document.write( " \n" ); document.write( " |