document.write( "Question 823215: The area of a rectangle is 560 square inches. The length is 3 more than twice the width. Find the
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document.write( "length and the width.
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Algebra.Com's Answer #495362 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! --- \n" ); document.write( "Lw = 560 \n" ); document.write( "L = 2w + 3 \n" ); document.write( "--- \n" ); document.write( "Lw = 560 \n" ); document.write( "(2w + 3)w = 560 \n" ); document.write( "2ww + 3w - 560 = 0 \n" ); document.write( "--- \n" ); document.write( "the above quadratic equation is in standard form, with a=2, b=3, and c=-560 \n" ); document.write( "--- \n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this: \n" ); document.write( "2 3 -560 \n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "this quadratic has two real roots (the x-intercepts), which are: \n" ); document.write( "w = 16 \n" ); document.write( "w = -17.5 \n" ); document.write( "--- \n" ); document.write( "negative width doesn't make sense for this problem, so use the positive root \n" ); document.write( "--- \n" ); document.write( "answer: \n" ); document.write( "w = 16 in \n" ); document.write( "L = 35 in \n" ); document.write( "--- \n" ); document.write( "Solve and graph linear equations: \n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve quadratic equations, quadratic formula: \n" ); document.write( "https://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( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( " |