document.write( "Question 171715This question is from textbook
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document.write( ": I got three different answer can someone please put me on the right track \r
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document.write( "thank you in advance.\r
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document.write( "Walt made an extra $9000 last year from a part-time job. He invested part of the money at 9% and the rest at 8%. He made a total of $770 in interest. How much was invested at 8%?
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Algebra.Com's Answer #126855 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Walt made an extra $9000 last year from a part-time job. He invested part of the money at 9% and the rest at 8%. He made a total of $770 in interest. How much was invested at 8%? \n" ); document.write( "-------------------------------- \n" ); document.write( "Interest Equation: 0.08x + 0.09(9000-x) = 770 \n" ); document.write( "8x + 9(9000-x) = 77000 \n" ); document.write( "-x +81000 = 77000 \n" ); document.write( "x = 4000 (amount invested at 8%) \n" ); document.write( "================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |