document.write( "Question 1138523: A man has 2,500 pesos to invest, divides his money between a building and loan corporation paying 6%, and a savings bank which pays 5%. If his money earns him 141 pesos each year, how much did he invest at each place? \n" ); document.write( "

Algebra.Com's Answer #756330 by ikleyn(53763) $\"\"$ $\"About$

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document.write( "Let x = amount at 6%, in pesos.\r\n" );
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document.write( "Then the amount at 5% is the rest (2500-x) pesos.\r\n" );
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document.write( "The interest from the  6%  amount is  0.06*x  pesos.\r\n" );
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document.write( "The interest from the  5%  amount is  0.05*(2500-x)   pesos.\r\n" );
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document.write( "Your equation is\r\n" );
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document.write( "    interest + interest     = total interest,   or\r\n" );
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document.write( "    0.63*x  + 0.05*(2500-x) = 141   pesos.\r\n" );
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document.write( "From the equation, express x and calculate the answer\r\n" );
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document.write( "    x =  = 1600.\r\n" );
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document.write( "Answer.  The amount at 6% is $1600;  the rest  $2500-$1600 = $900 is the amount at 5%.\r\n" );
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document.write( "Check.   0.06*1600 + 0.05*900 = 141 pesos.   ! 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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