document.write( "Question 668425: You have already invested $550 in a stock with an annual return of 11%. How much more should be invested at 15% so that the return on the total investment is 12%?
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Algebra.Com's Answer #415530 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! You have already invested $550 in a stock with an annual return of 11%. How much more should be invested at 15% so that the return on the total investment is 12%? \n" ); document.write( "------ \n" ); document.write( "Equation: \n" ); document.write( "interest + interest = interest \n" ); document.write( "0.11*550 + 0.15x = 0.12(550+x) \n" ); document.write( "--------- \n" ); document.write( "11*550 + 15x = 12*550 + 12x \n" ); document.write( "3x = 550 \n" ); document.write( "x = 183.33 (amt. to be invested at 15%) \n" ); document.write( "==================== \n" ); document.write( "Cheers, \n" ); document.write( "stan H. \n" ); document.write( " |