document.write( "Question 81081: Anna has 12 bills in her wallet, some 5$ and some $10. The total value of the bills is $100. How many of each bill does Anna have? \n" ); document.write( "
Algebra.Com's Answer #58163 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Anna has 12 bills in her wallet, some 5$ and some $10. The total value of the bills is $100. How many of each bill does Anna have? \n" ); document.write( "------------- \n" ); document.write( "Let # of $5 bills be x ; Value of these is 5x dollars \n" ); document.write( "# of $10 bills is \"12-x\" ; Value of these is 10(12-x)= 120-10x dollars \n" ); document.write( "--------- \n" ); document.write( "EQUATION: \n" ); document.write( "value + value = 100 dollars \n" ); document.write( "5x+120-10x = 100 \n" ); document.write( "-5x = -20 \n" ); document.write( "x=4 ( # of $5 bills) \n" ); document.write( "12-x=8 (# of $10 bills) \n" ); document.write( "============ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |