document.write( "Question 358969: a man has P18,000 which he invest partly at simple interest of 12 1/2% and the rest at 8 1/2% per annum. if his total annual income for this investment is P 1,770 how much was invested at each rate?
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Algebra.Com's Answer #256165 by mananth(16946)![]() ![]() You can put this solution on YOUR website! a man has P18,000 which he invest partly at simple interest of 12 1/2% and the rest at 8 1/2% per annum. if his total annual income for this investment is P 1,770 how much was invested at each rate? \n" ); document.write( "... \n" ); document.write( "$ x @ 12.5 % \n" ); document.write( "18000-x @ 8.5% \n" ); document.write( "total interest = 1770 \n" ); document.write( "... \n" ); document.write( "12.5x+8.5(18000-x)=1770*100 \n" ); document.write( "12.5x+153000-8.5x=177000 \n" ); document.write( "4x=24000 \n" ); document.write( "/4 \n" ); document.write( "x= 6000 @ 12.5 % \n" ); document.write( "$12000 @ 8.5% \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |