document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1105045>Question 1105045</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If you buy seven hamburgers and three sodas at a local fast food restaurant, you receive one dollar in change from a $20 bill. If you buy ate hamburgers and two sodas, you receive $.50 in change from a $20 bill. How much change will you receive from a five dollar bill if you buy one hamburger and one soda  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #719997 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719997\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The other tutor's answer is not right; perhaps you can see where she made her mistake....<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7a%2B3b+=+19 ALIGN=MIDDLE  ALT=\"7a%2B3b+=+19\"   DISABLED_style= \"max-width:90%; height:auto;\" >  you get $1 change from a $20 bill when buying 7 burgers and 3 sodas<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8a%2B2b+=+19.5 ALIGN=MIDDLE  ALT=\"8a%2B2b+=+19.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >  you get $0.50 change from a $20 bill when buying 8 burgers and 2 sodas<br><BR>\n" );
document.write( "Use elimination: multiply the first equation by 2 and the second by 3 and subtract to eliminate y:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14a%2B6b+=+38 ALIGN=MIDDLE  ALT=\"14a%2B6b+=+38\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24a%2B6b+=+58.5 ALIGN=MIDDLE  ALT=\"24a%2B6b+=+58.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10a+=+20.5 ALIGN=MIDDLE  ALT=\"10a+=+20.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+2.05 ALIGN=MIDDLE  ALT=\"a+=+2.05\"   DISABLED_style= \"max-width:90%; height:auto;\" >  each burger costs $2.05<br><BR>\n" );
document.write( "Substitute in either original equation to solve for y:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%282.05%29%2B3b+=+19 ALIGN=MIDDLE  ALT=\"7%282.05%29%2B3b+=+19\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14.35=3b+=+19 ALIGN=MIDDLE  ALT=\"14.35=3b+=+19\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3b+=+4.65 ALIGN=MIDDLE  ALT=\"3b+=+4.65\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+1.55 ALIGN=MIDDLE  ALT=\"b+=+1.55\"   DISABLED_style= \"max-width:90%; height:auto;\" >  each soda costs $1.55<br><BR>\n" );
document.write( "One burger and one soda costs $3.60; you get $1.40 change from a $5 bill. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );