document.write( "Question 1130897: David received an inheritance of $50,000. His financial advisor suggests that he invest this
\n" ); document.write( "in three mutual funds: a money-market fund, a blue-chip stock fund, and a high-tech stock
\n" ); document.write( "fund. The advisor estimates that the money-market fund will return 5% over the next year,
\n" ); document.write( "the blue-chip fund 9%, and the high-tech fund 16% (all simple interest). David wants a total
\n" ); document.write( "first-year return of $4000 in interest income. To avoid excessive risk, he decides to invest three
\n" ); document.write( "times as much in the money-market fund as in the high-tech stock fund. How much should
\n" ); document.write( "be invested in each fund?
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Algebra.Com's Answer #747514 by ikleyn(52776)\"\" \"About 
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document.write( "If x is invested i n the high-tech, then 3x is invested in the money market.\r\n" );
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document.write( "The rest,  50000-x-3x = 50-4x dollars is invested in the blue-chip.\r\n" );
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document.write( "The total interest equation is\r\n" );
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document.write( "    0.05*(3x) + 0.09*(50000-4x) + 0.16*x = 4000.\r\n" );
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document.write( "Simplify and solve for x.\r\n" );
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document.write( "Then estimate other investments.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Very simple.\r
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\n" ); document.write( "\n" ); document.write( "It is a standard and typical problem on investments.\r
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\n" ); document.write( "\n" ); document.write( "If you need more details,  or if you want to see other similar problems solved by different methods,  look into the lesson \r
\n" ); document.write( "\n" ); document.write( "    - Using systems of equations to solve problems on investment\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "You will find there different approaches  (using one equation or a system of two equations in two unknowns),  as well as
\n" ); document.write( "different methods of solution to the equations  (Substitution,  Elimination).\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic  \"Systems of two linear equations in two unknowns\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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