document.write( "Question 311292: you have 12 bills in your wallet some of the bills are $5's and some are $10's totaling $100 how many of ech do you have? I am not very good with figuring out word problems can you help? \n" ); document.write( "
Algebra.Com's Answer #222626 by palanisamy(496)![]() ![]() ![]() You can put this solution on YOUR website! Let the number of $5 bills = x \n" ); document.write( "And the number of $10 bills = y \n" ); document.write( "Total nomber of bills x+y = 12 ...(1) \n" ); document.write( "Total value is 5x+10y = 100 ...(2) \n" ); document.write( "(1)*5=> 5x+5y = 60 ...(3) \n" ); document.write( "(2)-(3)=> 5y=40 \n" ); document.write( " y= 40/5 \n" ); document.write( " y= 8 \n" ); document.write( "(1)=> x+8=12 \n" ); document.write( "x=12-8 \n" ); document.write( "x=4 \n" ); document.write( "So, the number of $5 bills = 4 \n" ); document.write( "And the number of $10 bills = 8 \n" ); document.write( " |