document.write( "Question 262878: Benjamin invested $12,000 in two CDs. One earned 4% and the other earned 6%. If he earned a total of $620 at the end of the year, how much was invested in each CD? Solve using linear systems \n" ); document.write( "
Algebra.Com's Answer #193679 by mananth(16946) You can put this solution on YOUR website! Benjamin invested $12,000 in two CDs. One earned 4% and the other earned 6%. If he earned a total of $620 at the end of the year, how much was invested in each CD? Solve using linear systems\r \n" ); document.write( "\n" ); document.write( "Let us assume he invested x in CD1 at 4%\r \n" ); document.write( "\n" ); document.write( "12000-x he invested in CD2 at 6%\r \n" ); document.write( "\n" ); document.write( "0.4x+0.6(1200-x) = 620\r \n" ); document.write( "\n" ); document.write( "0.4x +720 – 0.6x = 620 \n" ); document.write( "-0.2x= -100 \n" ); document.write( "X= -1000/-0.2 \n" ); document.write( "X= 5000 cd1\r \n" ); document.write( "\n" ); document.write( "CD1 $5000 \n" ); document.write( "CD2 he invested $7000 \n" ); document.write( " \n" ); document.write( " |