document.write( "Question 28797: shirley invested some money in an account that paid 9% interest and $250 more than that amount at 10% interest. if her total interest was $101, how much was invested at each rate? \n" ); document.write( "
Algebra.Com's Answer #15753 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! total interest = (9% * x) + (10% * (250 + x)) \n" ); document.write( ".09x + .1(250 + x) = 101 \n" ); document.write( ".09x + 25 + .1x = 101 \n" ); document.write( ".19x = 76 \n" ); document.write( "x = 400 \n" ); document.write( "250 + x = 650 \n" ); document.write( "check \n" ); document.write( ".09(400) + .1(650) = 101 \n" ); document.write( "36 + 65 = 101 \n" ); document.write( "101 = 101 \n" ); document.write( "checks OK \n" ); document.write( " |