document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=344715>Question 344715</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help with word problems. The first one is: You can paint a certain room in 5 hours. Your brother can do it in 2 hours. How long does it take the two of you working together? <BR>\n" );
document.write( "I thought that by adding 5 and 2 and then dividing that by 2 would give me the correct amount, but this is wrong. thank you.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #246662 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=246662\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can paint a certain room in 5 hours. Your brother can do it in 2 hours. How long does it take the two of you working together? <BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = time (hours) it takes for both working together<BR>\n" );
document.write( "then<BR>\n" );
document.write( "x(1/5 + 1/2) = 1<BR>\n" );
document.write( "Multiplying both sides by 10:<BR>\n" );
document.write( "x(2 + 5) = 10<BR>\n" );
document.write( "7x = 10<BR>\n" );
document.write( "x = 10/7<BR>\n" );
document.write( "x = 1.43 hours<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x = 1 hour and 26 minutes </SPAN>\n" );
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