document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=221073>Question 221073</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hannah can paint a room in 8hrs. Miley can paint it in 10hrs. working together, how many hrs would it take them to paint the room? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #165864 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=165864\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> hannah can paint a room in 8hrs. Miley can paint it in 10hrs. working together, how many hrs would it take them to paint the room?<BR>\n" );
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document.write( "Hannah does 1/8 room per hour.<BR>\n" );
document.write( "Miley does 1/10 per hour.<BR>\n" );
document.write( "Together, they do 1/8 + 1/10 per hour = 9/40 room per hour.<BR>\n" );
document.write( "9/40 room/hour --> 40/9  hours/room<BR>\n" );
document.write( "40/9 hours = ~ 4.44 hours<BR>\n" );
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document.write( "There's a shortcut, product/sum<BR>\n" );
document.write( "8*10/(8+10) = 80/18<BR>\n" );
document.write( "= 40/9 </SPAN>\n" );
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