document.write( "Question 826245: the ratio of length and breadth of rectangle is 5:3.Find l and b if perimeter is 256 \n" ); document.write( "
Algebra.Com's Answer #497977 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "x = length
\n" ); document.write( "y = breadth
\n" ); document.write( "---
\n" ); document.write( "x/y = 5/3
\n" ); document.write( "3x = 5y
\n" ); document.write( "---
\n" ); document.write( "2x + 2y = 256
\n" ); document.write( "---
\n" ); document.write( "linear system:
\n" ); document.write( "3x = 5y
\n" ); document.write( "2x + 2y = 256
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form:
\n" ); document.write( "---
\n" ); document.write( "3x - 5y = 0
\n" ); document.write( "2x + 2y = 256
\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 = 80
\n" ); document.write( "y = breadth = 48
\n" ); document.write( "---
\n" ); document.write( "system matrix
\n" ); document.write( "3 -5
\n" ); document.write( "2 2
\n" ); document.write( "---
\n" ); document.write( "inverse of system matrix
\n" ); document.write( "0.125 0.3125
\n" ); document.write( "-0.125 0.1875
\n" ); document.write( "---
\n" ); document.write( "determinant of system matrix = 16
\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
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