document.write( "Question 486990: The question is:
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document.write( " Carla invested $23,000.00, part at 16%, and part at 15%.
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document.write( "If the total interest @ the end of the year is $3,500.00, how much did she invest at 16%??
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document.write( " I worked the problem, but not sure if I am right.
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document.write( "I let x= 16%
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document.write( " y= 15%
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document.write( "my final answer was x = $5,000. Was I right?? Your expertise is greatly appreciated. \n" );
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Algebra.Com's Answer #333451 by ej_03(8)![]() ![]() You can put this solution on YOUR website! I also have the same computation regarding the problem, mine goes like this..\r \n" ); document.write( "\n" ); document.write( "let x=16% \n" ); document.write( " y=15%\r \n" ); document.write( "\n" ); document.write( " eq1 x+y =23000 \n" ); document.write( " y =23000-x \n" ); document.write( " eq2 0.16x+0.15y =3500\r \n" ); document.write( "\n" ); document.write( "perform the indicated operations in the equation:\r \n" ); document.write( "\n" ); document.write( " 0.16x+0.15(23000-x)=3500 \n" ); document.write( " 0.16x+3450-0.15x=3500 \n" ); document.write( " 0.16x-0.15x=3500-3450 \n" ); document.write( " 0.01x/0.01x=50/0.01 \n" ); document.write( " x=5000\r \n" ); document.write( "\n" ); document.write( " y=23000-5000 \n" ); document.write( " =18000 \n" ); document.write( "therefore carla invested 5000 at 16%. \n" ); document.write( "thank you...=) \n" ); document.write( " \n" ); document.write( " |