document.write( "Question 736723: Question 18379: A man walks into a bank and makes a withdrawal of $1500 from his savings account. He asks for a specific number of $1 bills and a certain number of $10 bills. He also asks for ten times as many $5 dollar bills as $1 bills and twice as many $50 bills as $10 bills. How many bills of each type does he get? \n" ); document.write( "
Algebra.Com's Answer #451963 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! n=ones \n" ); document.write( "t=tens \n" ); document.write( "f=fives \n" ); document.write( "y=fifties\r \n" ); document.write( "\n" ); document.write( "n+10t+5f+50y=1500 \n" ); document.write( "10n=f \n" ); document.write( "2t=y \n" ); document.write( "we only have three equations with four unknowns \n" ); document.write( "we can limit the numbers \n" ); document.write( "150>t>0 \n" ); document.write( "30>y>0 \n" ); document.write( "1500>n>0 \n" ); document.write( "300>f>0 \n" ); document.write( "y must be even \n" ); document.write( "there are now only 15 possible values for y \n" ); document.write( "n \n" ); document.write( "300>n>0 \n" ); document.write( "but f <300 \n" ); document.write( "so 30>n \n" ); document.write( "and \n" ); document.write( "t<15 \n" ); document.write( "from trial and error \n" ); document.write( "n = 10 and f = 100 and t = 9 and y = 18 \n" ); document.write( "check \n" ); document.write( "10*1+100*5+9*10+18*50 \n" ); document.write( "10+500+90+900=1500 \n" ); document.write( "1500=1500 \n" ); document.write( "ok |