document.write( "Question 828706: How many liters of a 20% solution of a chemical should be mixed with 15L of a 50% solution to get a 30% mixture? \n" ); document.write( "
Algebra.Com's Answer #499456 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "20x + 50y = 30(x + y)
\n" ); document.write( "y = 15
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form:
\n" ); document.write( "---
\n" ); document.write( "20x + 50y = 30x + 30y
\n" ); document.write( "y = 15
\n" ); document.write( "---
\n" ); document.write( "10x - 20y = 0
\n" ); document.write( "y = 15
\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( "answer:
\n" ); document.write( "x = 30 liters of 20%
\n" ); document.write( "y = 15 liters of 50%
\n" ); document.write( "---
\n" ); document.write( "resulting solution: 45 liters of 30%
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\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( "
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