document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1057931>Question 1057931</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two water pipes together can fill a certain tank in 8.4 h. The smaller pipe alone takes 1.7 h longer than the larger pipe to fill that same tank. How long would it take the larger pipe alone to fill the tank? Keep three significant digits. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #672940 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=672940\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time in hrs for the larger pipe<BR>\n" );
document.write( "to fill the tank<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+%2B+1.7+ ALIGN=MIDDLE  ALT=\"+t+%2B+1.7+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time in hrs for the smaller<BR>\n" );
document.write( "pipe to fill the tank<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "Add their rates of filling to get their <BR>\n" );
document.write( "rate filling together<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "rate for smaller pipe:<BR>\n" );
document.write( "[ 1 tank filled ] / [ t + 1.7 hrs ]<BR>\n" );
document.write( "rate for larger pipe:<BR>\n" );
document.write( "[ 1 tank filled ] / [ t hrs ]<BR>\n" );
document.write( "rate for both pipes together:<BR>\n" );
document.write( "[ 1 tank filled ] / [ 8.4 hrs ]<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F%28+t+%2B+1.7+%29+%2B+1%2Ft+=+1%2F8.4+ ALIGN=MIDDLE  ALT=\"+1%2F%28+t+%2B+1.7+%29+%2B+1%2Ft+=+1%2F8.4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%2A%28+t%2B1.7+%29%2A8.4+ ALIGN=MIDDLE  ALT=\"+t%2A%28+t%2B1.7+%29%2A8.4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+8.4t+%2B+8.4%2A%28+t+%2B+1.7+%29+=+t%2A%28+t+%2B+1.7+%29+ ALIGN=MIDDLE  ALT=\"+8.4t+%2B+8.4%2A%28+t+%2B+1.7+%29+=+t%2A%28+t+%2B+1.7+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+8.4t+%2B+8.4t+%2B+14.28+=+t%5E2+%2B+1.7t+ ALIGN=MIDDLE  ALT=\"+8.4t+%2B+8.4t+%2B+14.28+=+t%5E2+%2B+1.7t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5E2+-+15.1t+-+14.28+=+0+ ALIGN=MIDDLE  ALT=\"+t%5E2+-+15.1t+-+14.28+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use quadratic formula<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+%28-b+%2B-+sqrt%28+b%5E2+-+4%2Aa%2Ac+%29%29+%2F+%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"+t+=+%28-b+%2B-+sqrt%28+b%5E2+-+4%2Aa%2Ac+%29%29+%2F+%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+1+ ALIGN=MIDDLE  ALT=\"+a+=+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+-15.1+ ALIGN=MIDDLE  ALT=\"+b+=+-15.1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+c+=+-14.28+ ALIGN=MIDDLE  ALT=\"+c+=+-14.28+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is some tough calculations. You can finish<BR>\n" );
document.write( "and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > is time in hrs for larger pipe to fill tank<BR>\n" );
document.write( "Check my math so far\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );