document.write( "Question 1134079: Nico is saving money for his college education. He invests some money at 5%, and $2100 less than that amount at 4 %. The investments produced a total of $177 interest in 1 yr. How much did he invest at each rate? \n" ); document.write( "

Algebra.Com's Answer #751769 by mathsolverplus(88) $\"\"$ $\"About$

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Let x be the first sum of money he invested with the interest rate of 5%, \r
\n" ); document.write( "\n" ); document.write( "Interest from the first investment: 5%(x)\r
\n" ); document.write( "\n" ); document.write( "Interest from the second investment: (x-2100)(4%)\r
\n" ); document.write( "\n" ); document.write( "Total interest:\r
\n" ); document.write( "\n" ); document.write( " $\"%280.05%29x%2B%28x-2100%29%280.04%29=177\"$
\n" ); document.write( " $\"0.05x%2B0.04x-84=177\"$
\n" ); document.write( " $\"%280.09x%29=261\"$
\n" ); document.write( "x = 2900\r
\n" ); document.write( "\n" ); document.write( "First investment: He invested $2900 with 5% interest rate.
\n" ); document.write( "Second investment: He invested $800 with 4% interest rate.\r
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