document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=166290>Question 166290</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618371834/algebrahomeworkh>algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> you are running water into a laundry sink to get a mixture that is one half hot water and one half cold water. The hot water flows more slowly, at a rate of 7.8 liters per minute, so you turn it on first. Two minutes later, you also turn on the cold water which flows at a rate of 12.3 liters per minute. You want to know how long to wait before turning the two faucets off.  let t represent  the number of minutes the hot water is on. Write a variable expression for the amount of time the cold water is on.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #122555 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=122555\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> so if t is the number of minutes the hot water is on.\r<BR>\n" );
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document.write( "so hot water is 7.8(t)<BR>\n" );
document.write( "   cold water is 12.3(t-2)\r<BR>\n" );
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document.write( "these 2 must be equal as stated so 7.8t=12.3(t-2)--->7.8t=12.3t-24.6<BR>\n" );
document.write( "so 4.5t=24.6<BR>\n" );
document.write( "      t=5.47\r<BR>\n" );
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document.write( "so hot water is on for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5.47min ALIGN=MIDDLE  ALT=\"5.47min\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and cold water is on for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.47min ALIGN=MIDDLE  ALT=\"3.47min\"   DISABLED_style= \"max-width:90%; height:auto;\" >    (t-2)--->5.47-2 </SPAN>\n" );
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