document.write( "Question 1162159: In investing $5,900 of a couple's money, a financial planner put some of it into a savings account paying 5% annual simple interest. The rest was invested in a riskier mini-mall development plan paying 10% annual simple interest. The combined interest earned for the first year was $460. How much money was invested at each rate? \n" ); document.write( "

Algebra.Com's Answer #785879 by ikleyn(52832) $\"\"$ $\"About$

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document.write( "x dollars invested at 10%\r\n" );
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document.write( "(5900-x) dollars invested at 5%\r\n" );
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document.write( "The total interest equation is\r\n" );
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document.write( "    0.1x + 0.05*(5900-x) = 460  dollars.\r\n" );
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document.write( "From the equation,\r\n" );
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document.write( "    x =  = 3300.\r\n" );
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document.write( "ANSWER.  $3300 invested at 10%, and the rest, 5900-3300 = 2600 dollars invested at 5%.\r\n" );
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document.write( "CHECK.  0.1*3300 + 0.05*2600 = 460 dollars.   ! Precisely correct !\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a typical and standard problem on investment.\r
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\n" ); document.write( "\n" ); document.write( "To see many other similar solved problems on investment, 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( "\n" ); document.write( "Save the link to this online textbook together with its description\r
\n" ); document.write( "
\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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