document.write( "Question 929939: Mr. Ang invested Php 16,000, a part of it at 9% and he rest at 4%, his total interest from at both investments was Php 900. How much did he invest at each rate? \n" ); document.write( "

Algebra.Com's Answer #564577 by TimothyLamb(4379) $\"\"$ $\"About$

You can put this solution on YOUR website!
x = amount invested at 9%
\n" ); document.write( "y = amount invested at 4%
\n" ); document.write( "---
\n" ); document.write( "x + y = 16000
\n" ); document.write( "0.09x + 0.04y = 900
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form
\n" ); document.write( "---
\n" ); document.write( "x + y = 16000
\n" ); document.write( "0.09x + 0.04y = 900
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above standard form linear equations in to this 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 = amount invested at 9% = 5200
\n" ); document.write( "y = amount invested at 4% = 10800
\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( "--- \n" ); document.write( "

\n" );