document.write( "Question 1136898: Erik invests $6700 in two different accounts. The first account paid 2 %, the second account paid 8 % in interest. At the end of the first year he had earned $470 in interest. How much was in each account?
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Algebra.Com's Answer #754733 by ikleyn(52816)\"\" \"About 
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document.write( "Let x = amount at 8%.  Then the rest,  (6700-x) is amount at 2%.\r\n" );
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document.write( "    0.08*x + 0.02*(6700-x) = 470\r\n" );
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document.write( "    x = \"%28470+-+0.02%2A6700%29%2F%280.08-0.02%29\" = 5600 dollars.   \r\n" );
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document.write( "ANSWER.  $5600 at 8% and the rest, $1100 at 2%.\r\n" );
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document.write( "CHECK.    5600*0.08 + 1100*0.02 = 470 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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