document.write( "Question 934626: stan invested part of his 1000 at an annual rate of 6% and part of it at 9%. If his return of the two investments is $66 how much did he invest at each rate \n" ); document.write( "
Algebra.Com's Answer #567646 by TimothyLamb(4379)\"\" \"About 
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x = amount invested at 6%
\n" ); document.write( "y = amount invested at 9%
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\n" ); document.write( "x + y = 1000
\n" ); document.write( "0.06x + 0.09y = 66
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\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "x + y = 1000
\n" ); document.write( "0.06x + 0.09y = 66
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
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\n" ); document.write( "solution:
\n" ); document.write( "x = amount invested at 6% = 800
\n" ); document.write( "y = amount invested at 9% = 200
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