document.write( "Question 1192996: joy invested a certain amount at 9%, twice that amount at 10%, and three times that amount at 11%. find the amount invested at each rate if the total yearly income from the three investments was Php27,900.00. What is the amount of the investment at 10% \n" ); document.write( "

Algebra.Com's Answer #824940 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "Write equation for the total interest\r\n" );
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document.write( "    0.09*x + 0.1*(2x) + 0.11*(3x) = 27900\r\n" );
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document.write( "where x is the amount invested at 9%.\r\n" );
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document.write( "Simplify this equation and find x\r\n" );
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document.write( "    x =  = 45000.    \r\n" );
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document.write( "ANSWER.  Php 45000 invested at 9%;  Php 90000 invested at 10% and Php 135000 invested at 11%.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Your second question is a part of the first question.\r
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\n" ); document.write( "\n" ); document.write( "Why you placed your second question separately, is unclear to me . . . it is covered in full by the first question.\r
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