document.write( "Question 1112771: Vince invested $24,000 for one year, part at 10% and part at 8%. If he earned a total of $2280, how much was invested at each rate? \n" ); document.write( "

Algebra.Com's Answer #727782 by ikleyn(52835) $\"\"$ $\"About$

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document.write( "0.1x + 0.08*(24000-x) = 2280\r\n" );
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document.write( "0.1x + 0.08*24000 - 0.08x = 2280\r\n" );
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document.write( "0.02x = 2280 - 0.08*24000 = 360  ====>  x =  = 18000.\r\n" );
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document.write( "Answer.   18000 dollars invested at 10% and the rest, 24000-18000= 6000 dollars was invested at 8%.\r\n" );
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document.write( "Check.  0.1*18000 + 0.08*6000 = 2280  dollars.   ! Correct !\r\n" );
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\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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