document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=961624>Question 961624</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 18 persons can wash 50 cars in 4 hours. How long will it take 22 persons wash 48 cars ? <BR>\n" );
document.write( "Thanks for helping me *smile face*  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #587565 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=587565\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is uniform work-rates type of problem.\r<BR>\n" );
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document.write( "Let r be rate of washing cars for 1 person in unit of car per hour.\r<BR>\n" );
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document.write( "RT=J  rate time job, and \"job\" means whatever amount of CARS.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%2818r%2A4=50%2C22%2Ar%2At=48%29 ALIGN=MIDDLE  ALT=\"system%2818r%2A4=50%2C22%2Ar%2At=48%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Note this system uses two unknown variables and is of two equations.  One of the equations has just the variable, r, and that is the equation you use first; and then substitute this into the other equation and finish solving for t. </SPAN>\n" );
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