document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1019185>Question 1019185</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Saul has a combination of $1, $5, and $10 bills in his wallet worth a total of $75. He has a total of 20 bills, and the sum of the number of $5 and $10 bills is the same as the number of $1 bills. How many $10 bills does Saul have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #635129 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=635129\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x=$1<BR>\n" );
document.write( "y=$5<BR>\n" );
document.write( "z=$10<BR>\n" );
document.write( "x+y+z=20<BR>\n" );
document.write( "y+z=x<BR>\n" );
document.write( "x+5y+10z=75<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "substitute second into first<BR>\n" );
document.write( "2y+2z=20<BR>\n" );
document.write( "y+z=10, after dividing by 2<BR>\n" );
document.write( "y+z+5y+10z=75<BR>\n" );
document.write( "6y+11z+75<BR>\n" );
document.write( "but y=10-z<BR>\n" );
document.write( "so 60-6z+11z=75<BR>\n" );
document.write( "5z=15<BR>\n" );
document.write( "z=3<BR>\n" );
document.write( "y=7<BR>\n" );
document.write( "x=10<BR>\n" );
document.write( "10--$1==$10<BR>\n" );
document.write( "7--$5---$35<BR>\n" );
document.write( "3--$10--$30 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );