document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=37132>Question 37132</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I do not know what formula to use to solve problems of this nature.\r<BR>\n" );
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document.write( "Here is the problem: If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks? \r<BR>\n" );
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document.write( "Can you help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #728282 by </B><A HREF=/tutors/aboutme.mpl?userid=amalm06><B>amalm06(224)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amalm06><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=amalm06><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=728282\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Steven: dW1/dt=4 --> dW1= 4 dt\r<BR>\n" );
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document.write( "Sue: dW2/dt=2 --> dW2= 2 dt\r<BR>\n" );
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document.write( "Jack: dW3/dt=1.333 --> dW3 = 1.333 dt\r<BR>\n" );
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document.write( "W=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=int%28+%284%2B2%2B1.333%29%2C+dt%2C+0%2C+t+%29 ALIGN=MIDDLE  ALT=\"int%28+%284%2B2%2B1.333%29%2C+dt%2C+0%2C+t+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=1\r<BR>\n" );
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document.write( "7.333t = 1\r<BR>\n" );
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document.write( "t=0.136 (total time for 1 drink)\r<BR>\n" );
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document.write( "The time taken to make twenty drinks is 0.136*20=2.73 min (Answer) </SPAN>\n" );
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