document.write( "Question 906812: Miguel receives $306 per year in simple interest from three investments totaling $3200. Part is invested at 8%,Part at 9% and part at 10%. There is $1900 more invested at 10% than at 9%. Find thee amount invested at each rate.
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Algebra.Com's Answer #550063 by richwmiller(17219)\"\" \"About 
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0.08*x+0.09*y+0.1*z=306,
\n" ); document.write( "z=y+1900,
\n" ); document.write( "x+y+z=3200,\r
\n" ); document.write( "\n" ); document.write( "x+y+y+1900=3200,
\n" ); document.write( "x+2*y=1300\r
\n" ); document.write( "\n" ); document.write( "x=500., y=400., z=2300.
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