document.write( "Question 827376: The perimeter of a rectangle is 98 feet. The ratio of its length to its width s 5:2. Find the area. How do you do this problem!?!?
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Algebra.Com's Answer #498676 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! --- \n" ); document.write( "x = length \n" ); document.write( "y = width \n" ); document.write( "--- \n" ); document.write( "2x + 2y = 98 \n" ); document.write( "x/y = 5/2 \n" ); document.write( "--- \n" ); document.write( "put the system of linear equations into standard form: \n" ); document.write( "--- \n" ); document.write( "2x + 2y = 98 \n" ); document.write( "x = (5/2)y \n" ); document.write( "--- \n" ); document.write( "2x + 2y = 98 \n" ); document.write( "x - 2.5y = 0 \n" ); document.write( "--- \n" ); document.write( "copy and paste the above linear system in standard form into this matrix-method solver: \n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "--- \n" ); document.write( "solution: \n" ); document.write( "x = length = 35 ft \n" ); document.write( "y = width = 14 ft \n" ); document.write( "--- \n" ); document.write( "system matrix \n" ); document.write( "2 2 \n" ); document.write( "1 -2.5 \n" ); document.write( "--- \n" ); document.write( "inverse of system matrix \n" ); document.write( "0.35714286 0.28571429 \n" ); document.write( "0.14285714 -0.28571429 \n" ); document.write( "--- \n" ); document.write( "determinant of system matrix = -7 \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( " |