document.write( "Question 996107: part of 100,000.00 invested at 5% and the rest at 6%. if the income from both invesment is 5,400.00. how much invested at each rate?
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Algebra.Com's Answer #614676 by macston(5194) You can put this solution on YOUR website! . \n" ); document.write( "F=amount at 5%; S=amount at 6% \n" ); document.write( ". \n" ); document.write( "F+S=100000 \n" ); document.write( "F=100000-S \n" ); document.write( ". \n" ); document.write( "0.05F+0.06S=5400 \n" ); document.write( "0.05(100000-S)+0.06S=5400 \n" ); document.write( "5000-0.05S+0.06S=5400 \n" ); document.write( "0.01S=400 \n" ); document.write( "S=40000 \n" ); document.write( ". \n" ); document.write( "F=100000-S=100000-40000=60000 \n" ); document.write( ". \n" ); document.write( "ANSWER: 60000 was invested at 5% and 40000 was invested at 6%. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( ". \n" ); document.write( "0.05F+0.06S=5400 \n" ); document.write( "0.05(60000)+0.06(40000)=5400 \n" ); document.write( "3000+2400=5400 \n" ); document.write( "5400=5400 \n" ); document.write( " \n" ); document.write( " |