document.write( "Question 1150712: Jolene invests her savings in two bank accounts, one paying 5 percent and the other paying 8 percent simple interest per year. She puts twice as much in the lower-yielding account because it is less risky. Her annual interest is 6552 dollars. How much did she invest at each rate?
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Algebra.Com's Answer #772127 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Let x = amount at the 8% account.\r\n" );
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document.write( "Then the amount at 5% interest account is 2x  dollars.\r\n" );
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document.write( "The setup equation is\r\n" );
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document.write( "    0.08*x + 0.05*(2x) = 6552  dollars.\r\n" );
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document.write( "From the equation\r\n" );
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document.write( "    x =  =  36400.\r\n" );
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document.write( "ANSWER.  $36400 invested at 8%  and  2*36400 = 72800 dollars invested at 5%.\r\n" );
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document.write( "CHECK.  0.08*36400 + 0.05*72800 =  6552 dollars.   ! Correct !\r\n" );
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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
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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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