document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1104609>Question 1104609</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem... i need it rn\r<BR>\n" );
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document.write( "When john and marsha worked together, they finished a job in 10 days. But when she joined him only after he had worked for 7 days, they finished the same job in 5 more days. In how many days can each of them finish the job alone?\r<BR>\n" );
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document.write( "a.Representation\r<BR>\n" );
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document.write( "B.formulate the equation\r<BR>\n" );
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document.write( "C. Show the solution\r<BR>\n" );
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document.write( "D. Checking\r<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 #719306 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=719306\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When john and marsha worked together, they finished a job in 10 days. But when she joined him only after he had worked for 7 days, they finished the same job in 5 more days. In how many days can each of them finish the job alone? <BR>\n" );
document.write( "a.Representation <BR>\n" );
document.write( "Together:: time = 10days/job ; rate = 1/10 job/day<BR>\n" );
document.write( "John:: time = j days/job ; rate = 1/j job/day<BR>\n" );
document.write( "Marsha:: time = m days/job ; rate = 1/m days/job<BR>\n" );
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document.write( "B.formulate the equation<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/j + 1/m = 1/10<BR>\n" );
document.write( "7(1/j) + 5(1/10) = 1<BR>\n" );
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document.write( "7/j  = 1/2<BR>\n" );
document.write( "j = 14 days/job (John's time to finish alone)<BR>\n" );
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document.write( "(1/14) + 1/m = 1/10<BR>\n" );
document.write( "1/m = (1/10) - (1/14)<BR>\n" );
document.write( "1/m = (14-10)/140<BR>\n" );
document.write( "m = 140/4 = 35 (Marsha's time to finish alone)<BR>\n" );
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document.write( "Cheers<BR>\n" );
document.write( "stan H.<BR>\n" );
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document.write( "C. Show the solution <BR>\n" );
document.write( "D. Checking  </SPAN>\n" );
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