document.write( "Question 216279: If Ben invests $4000 at 4% interest per year, how much additional money must he invest at 5.5% annual interest to ensure that the interest he receive each year is 4.5 of the total amount invested? \n" ); document.write( "
Algebra.Com's Answer #163337 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! .055x+.04*4,000=.045(4,000+x) \n" ); document.write( ".055x+160=180+.045x \n" ); document.write( ".055x-.045x=180-160 \n" ); document.write( ".01x=20 \n" ); document.write( "x=20/.01 \n" ); document.write( "x=2,000 needs to be invested @ 5.5%. \n" ); document.write( "Proof: \n" ); document.write( ".055*2,000+.04*4,000=.045(4,000+2,000) \n" ); document.write( "110+160=.045*6,000 \n" ); document.write( "270=270 \n" ); document.write( " |