document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=370033>Question 370033</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A. Perfume is sold in 10mL and 25mL bottles. If a chemist orders 600mL of perfume and receives 33 bottles, how many of each did he receive?\r<BR>\n" );
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document.write( "B. A boat travels 120km upstream against the current in 5 hours, but makes the return trip in only four hours. Find the speed of the current and the speed of the boat in still water.\r<BR>\n" );
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document.write( "Please help, Ive tried all different ways for both questions, but I must be using the wrong information. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #263821 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=263821\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let A be the number of 10ml bottle, B the number of 25mL bottles.<BR>\n" );
document.write( "1.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2BB=33 ALIGN=MIDDLE  ALT=\"A%2BB=33\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10A%2B25B=600 ALIGN=MIDDLE  ALT=\"10A%2B25B=600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A%2B5B=120 ALIGN=MIDDLE  ALT=\"2A%2B5B=120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply eq. 1 by (-2) and add to eq. 2,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2A-2B%2B2A%2B5B=-66%2B120 ALIGN=MIDDLE  ALT=\"-2A-2B%2B2A%2B5B=-66%2B120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3B=54 ALIGN=MIDDLE  ALT=\"3B=54\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28B=18%29 ALIGN=MIDDLE  ALT=\"highlight%28B=18%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then from eq. 1,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2B18=33 ALIGN=MIDDLE  ALT=\"A%2B18=33\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28A=15%29 ALIGN=MIDDLE  ALT=\"highlight%28A=15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
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document.write( "Let B be the boat speed, C the river current.<BR>\n" );
document.write( "Rate*Time=Distance.<BR>\n" );
document.write( "With the current, <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28B%2BC%294=120 ALIGN=MIDDLE  ALT=\"%28B%2BC%294=120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "1.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%2BC=30 ALIGN=MIDDLE  ALT=\"B%2BC=30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Against the current,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28B-C%295=120 ALIGN=MIDDLE  ALT=\"%28B-C%295=120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B-C=24 ALIGN=MIDDLE  ALT=\"B-C=24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Add eq. 1 to eq. 2,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%2BC%2BB-C=30%2B24 ALIGN=MIDDLE  ALT=\"B%2BC%2BB-C=30%2B24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2B=54 ALIGN=MIDDLE  ALT=\"2B=54\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28B=27%29 ALIGN=MIDDLE  ALT=\"highlight%28B=27%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >kph<BR>\n" );
document.write( "From eq. 1,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=27%2BC=30 ALIGN=MIDDLE  ALT=\"27%2BC=30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28C=3%29 ALIGN=MIDDLE  ALT=\"highlight%28C=3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >kph </SPAN>\n" );
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