document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=174543>Question 174543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 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 togeter to mix 20 drinks? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #129554 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=129554\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If Steven can mix 20 drinks in 5 minutes, then in 1 minute he can mix 4 drinks.<BR>\n" );
document.write( "If Sue can mix  20 drinks in 10 minutes, then in 1 minute she can mix 2 drinks.<BR>\n" );
document.write( "If Jack can mix 20 drinks in 15 minutes, then in 1 minute he can mix 20/15 =4/3 drinks.\r<BR>\n" );
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document.write( "Let x = time it will take all 3 mixing drinks together to mix 20 drinks.  \r<BR>\n" );
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document.write( "Then in 1 minute, all will be able to mix 20/x drinks.\r<BR>\n" );
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document.write( "Now, number of drinks of Steven in 1 minute + no drinks by Sue in 1 minute + no drinks by Jack in 1 minute = Number of drinks by  all in 1 minute.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+%2B+2+%2B+4%2F3+=+20%2Fx ALIGN=MIDDLE  ALT=\"4+%2B+2+%2B+4%2F3+=+20%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6+%2B+4%2F3+=+20%2Fx ALIGN=MIDDLE  ALT=\"6+%2B+4%2F3+=+20%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Multiply both sides of the equation by the LCD which is 3x:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2A6+%2B+3x%2A%284%2F3%29+=+3x%2A%2820%2Fx%29+ ALIGN=MIDDLE  ALT=\"3x%2A6+%2B+3x%2A%284%2F3%29+=+3x%2A%2820%2Fx%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18x+%2B+4x+=+60 ALIGN=MIDDLE  ALT=\"18x+%2B+4x+=+60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=22x+=+60 ALIGN=MIDDLE  ALT=\"22x+=+60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=+60%2F22+=+30%2F11=+2.7 ALIGN=MIDDLE  ALT=\"x=+60%2F22+=+30%2F11=+2.7\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes (approximately)\r<BR>\n" );
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document.write( "R^2 </SPAN>\n" );
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