document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=315624>Question 315624</A>: <I><SPAN STYLE=\"word-break: break-all;\"> jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 7 hours. How much time would it take for them to mow the lawn together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #225826 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=225826\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> in some time (t), Jack will mow t/3 of the lawn<BR>\n" );
document.write( "___ during the same time, Marilyn will mow t/7 of the lawn<BR>\n" );
document.write( "___ these two fractions add up to the whole lawn\r<BR>\n" );
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document.write( "(t/3) + (t/7) = 1\r<BR>\n" );
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document.write( "multiplying by 21 (LCD) ___ 7t + 3t = 21\r<BR>\n" );
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document.write( "10t = 21 ___ t = 2.1 </SPAN>\n" );
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