document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234370>Question 234370</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am starting college again and this is a practice question on a review and I can't even remember where to begin with this. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? <BR>\n" );
document.write( "It does have multiple choice and they are. \r<BR>\n" );
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document.write( "A. 2 hours and 24 minutes <BR>\n" );
document.write( "B. 3 hours and 12 minutes <BR>\n" );
document.write( "C. 3 hours and 44 minutes <BR>\n" );
document.write( "D. 4 hours and 10 minutes <BR>\n" );
document.write( "E. 4 hours and 33 minutes  <BR>\n" );
document.write( "Thank you for your help. I haven't don't algebra in 10 years or longer. I have always done well and I think with the a little refreshing I will do better. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172815 by </B><A HREF=/tutors/aboutme.mpl?userid=monika_p><B>monika_p(71)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=monika_p><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=172815\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  <BR>\n" );
document.write( "Sally can paint a house in 4 hrs so her rate is 1/4 (1/4 of the house will be painted in one hr), and <BR>\n" );
document.write( "Joh can paint house in 6 hrs , his rate is 1/6\r<BR>\n" );
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document.write( "In x hours, Sally paints  x/4 of the room and John paints  x/6 of the room. Since they will be working together, we will add the two parts together. The sum equals one complete job and gives us the following equation: <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2F4%29%2B%28x%2F6%29=1 ALIGN=MIDDLE  ALT=\"%28x%2F4%29%2B%28x%2F6%29=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "solving for x:<BR>\n" );
document.write( "3x/12+2x/12=1<BR>\n" );
document.write( "5x/12=1<BR>\n" );
document.write( "5x=12<BR>\n" );
document.write( "x=12/5<BR>\n" );
document.write( "x=2 2/5   2hr 24mins<BR>\n" );
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document.write( " </SPAN>\n" );
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