document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151255>Question 151255</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having difficulty with this word problems, I am not sure where to begin.\r<BR>\n" );
document.write( "\n" );
document.write( "If Steve can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, Jack can mix 20 drinks in 15 minutes, how much tie will it take if all 3 of them work together to mix 20 drinks?<BR>\n" );
document.write( "The study guide lists the answer as 2 minutes, 44 seconds </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111151 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=111151\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If Steve can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, Jack can mix 20 drinks in 15 minutes, how much tie will it take if all 3 of them work together to mix 20 drinks?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Here's an easy way to do this:<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let t = time required when they all work together<BR>\n" );
document.write( "Let the completed job = 1 (the mixing of 20 drinks)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F5 ALIGN=MIDDLE  ALT=\"t%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F10 ALIGN=MIDDLE  ALT=\"t%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F15 ALIGN=MIDDLE  ALT=\"t%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "Multiply equation by 30 to get rid of the denominator:<BR>\n" );
document.write( ":<BR>\n" );
document.write( "6t + 3t + 2t = 30<BR>\n" );
document.write( ":<BR>\n" );
document.write( "11t = 30<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2F11 ALIGN=MIDDLE  ALT=\"30%2F11\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "t = 2.727 hrs. Change the decimal hrs to minutes: .727 * 60 = 43.6 min<BR>\n" );
document.write( "or<BR>\n" );
document.write( "t = 2 min 44 sec </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );