document.write( "Question 61059: Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have? \n" ); document.write( "
Algebra.Com's Answer #41970 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! n = number of $5's \n" ); document.write( "m = number of $10's \n" ); document.write( "n + m = 12 \n" ); document.write( "5n + 10m = 100 \n" ); document.write( "5n + 10(12 - n) = 100 \n" ); document.write( "5n + 120 - 10n = 100 \n" ); document.write( "5n = 20 \n" ); document.write( "n = 4 \n" ); document.write( "m = 12 - n \n" ); document.write( "m = 8 \n" ); document.write( "check \n" ); document.write( "5*4 + 10*8 = 100 \n" ); document.write( "20 + 80 = 100 \n" ); document.write( "OK \n" ); document.write( " |