document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234693>Question 234693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A cashier's drawer has some $5 bills, some $10 bills, and some $20 bills. There are 15 bills worth a total of $185. How many $5 bills, $10 bills, and $20 bills are there? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #173033 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=173033\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let number of 5's = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a ALIGN=MIDDLE  ALT=\"a\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Let number of 10's = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"b\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Let number of 20's = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c ALIGN=MIDDLE  ALT=\"c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5a+%2B+10b+%2B+20c+=+185 ALIGN=MIDDLE  ALT=\"5a+%2B+10b+%2B+20c+=+185\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+%2B+b+%2B+c+=+15 ALIGN=MIDDLE  ALT=\"a+%2B+b+%2B+c+=+15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "there are 3 unknowns and only 2 equations, so<BR>\n" );
document.write( "it requires some extra work to solve<BR>\n" );
document.write( "Let me figure out how many 20's I should have<BR>\n" );
document.write( "to give me 15 bills in all<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "20 ---- 10 ---- 5 ----# of bills<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "10 ($200, too much)<BR>\n" );
document.write( "9 ----- 0 ----- 1 ---- 10 (not enough)<BR>\n" );
document.write( "8 ----- 0 ----- 5 ---- 13 (not enough)<BR>\n" );
document.write( "7 ----- 1 ----- 7 ---- 15 OK<BR>\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "There are 7 $20's, 1 $10 and 7 $5's<BR>\n" );
document.write( "check answer:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5a+%2B+10b+%2B+20c+=+185 ALIGN=MIDDLE  ALT=\"5a+%2B+10b+%2B+20c+=+185\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2A7+%2B+10%2A1+%2B+20%2A7+=+185 ALIGN=MIDDLE  ALT=\"5%2A7+%2B+10%2A1+%2B+20%2A7+=+185\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=35+%2B+10+%2B+140+=+185 ALIGN=MIDDLE  ALT=\"35+%2B+10+%2B+140+=+185\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=185+=+185 ALIGN=MIDDLE  ALT=\"185+=+185\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+%2B+b+%2B+c+=+15 ALIGN=MIDDLE  ALT=\"a+%2B+b+%2B+c+=+15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+%2B+1+%2B+7+=+15 ALIGN=MIDDLE  ALT=\"7+%2B+1+%2B+7+=+15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15+=+15 ALIGN=MIDDLE  ALT=\"15+=+15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );