document.write( "Question 802153: A financial planner wants toinvest 8000 some in stocks earning 15% annually and the rest in bonds earning 6% annually. How much should be invested at each rate to get a return of 930$ annually from the two investments? \n" ); document.write( "
Algebra.Com's Answer #483774 by mananth(16946)\"\" \"About 
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Part I 15.00% per annum ------------- Amount invested =x
\n" ); document.write( "Part II 6.00% per annum ------------ Amount invested = y
\n" ); document.write( " 8000
\n" ); document.write( "Interest----- 930.00
\n" ); document.write( "
\n" ); document.write( "Part I 15.00% per annum ---x
\n" ); document.write( "Part II 6.00% per annum ---y
\n" ); document.write( "Total investment
\n" ); document.write( "x + 1 y= 8000 -------------1
\n" ); document.write( "Interest on both investments
\n" ); document.write( "15.00% x + 6.00% y= 930
\n" ); document.write( "Multiply by 100
\n" ); document.write( "15 x + 6 y= 93000.00 --------2
\n" ); document.write( "Multiply (1) by -15
\n" ); document.write( "we get
\n" ); document.write( "-15 x -15 y= -120000.00
\n" ); document.write( "Add this to (2)
\n" ); document.write( "0 x -9 y= -27000
\n" ); document.write( "divide by -9
\n" ); document.write( " y = 3000 - x)
\n" ); document.write( "Part I 15.00% $ 5000
\n" ); document.write( "Part II 6.00% $ 3000
\n" ); document.write( "
\n" ); document.write( "CHECK
\n" ); document.write( "5000 --------- 15.00% ------- 750.00
\n" ); document.write( "3000 ------------- 6.00% ------- 180.00
\n" ); document.write( "Total -------------------- 930.00
\n" ); document.write( "
\n" ); document.write( "m.ananth@hotmail.ca
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