document.write( "Question 146602: An investment of 5600 is made at an annual simple interest rate of 6.5%. How much additional money must be invested at an annual simple interest rate of 9% so that the toatl interest earned is 8% of the total investement \n" ); document.write( "
Algebra.Com's Answer #107200 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 5600*.065+.09x=.08(5600+x) \n" ); document.write( "364+.09x=448+.08x \n" ); document.write( ".09x-.08x=448-364 \n" ); document.write( ".01x=84 \n" ); document.write( "x=84/.01 \n" ); document.write( "x=8,400 invested @ 9% will stiafy the need. \n" ); document.write( "proof: \n" ); document.write( "5600*.065+.09*8,400=.08(5600+8,400) \n" ); document.write( "364+756=.08*14,000 \n" ); document.write( "1,120=1,120 \n" ); document.write( " \n" ); document.write( " |