document.write( "Question 1177198: Tina invested P100,000 more than her husband did. If they both invested the money at 5% per year and their combined income from the investments was P35,000,how much did they invest in each? Show solution. \n" ); document.write( "
Algebra.Com's Answer #805470 by ikleyn(52803)\"\" \"About 
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document.write( "The total interest equation is\r\n" );
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document.write( "    0.05x + 0.05*(x+100000) = 35000\r\n" );
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document.write( "From the equation,\r\n" );
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document.write( "    x = \"%2835000-0.05%2A100000%29%2F%280.05%2B0.05%29\" = 300,000   invested by the husband.\r\n" );
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document.write( "Hence,  the amount invested  by Tina was 300,000 + 100,000 = 400,000.\r\n" );
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document.write( "CHECK.  0.05*300000 + 0.05*400000 = 35,000, the 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
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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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