document.write( "Question 810709: Billy has two investments totaling $9000. One investment 6% and the other 10%. If the interest was $630 total annual. How much was each is invested at each rate. \n" ); document.write( "
Algebra.Com's Answer #488574 by richwmiller(17219)\"\" \"About 
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x+y=9000,
\n" ); document.write( ".06x+.1*y=630
\n" ); document.write( "x=6750., y=2250.
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