document.write( "Question 1182196: Estefania invests a total of P24,000 in two accounts paying 7% and 6% annual interest, respectively. How much was invested in each account if, after one year, the total interest was P1,630.00. \r
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Algebra.Com's Answer #812179 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "Estefania invests a total of P24,000 in two accounts paying 7% and 6% annual interest, respectively.
\n" ); document.write( "How much was invested in each account if, after one year, the total interest was P1,630.00.
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document.write( "Let x be the amount invested at 7%.\r\n" );
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document.write( "Then the amount invested at 6% is the rest  (24000-x) monetary units.\r\n" );
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document.write( "Next, you write the total interest equation\r\n" );
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document.write( "    0.07x + 0.06*(24000-x) = 1630.\r\n" );
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document.write( "From the equation\r\n" );
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document.write( "    x =  = 19000.\r\n" );
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document.write( "ANSWER.  19000 was invested at 7% and the rest, (24000-19000) = 5000  was invested at 6%.\r\n" );
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document.write( "CHECK.   19000*0.07 + 5000*0.06 = 1630,  total interest.    ! 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
\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
\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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