document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=445549>Question 445549</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jake can complete a job in 5 hours while Jerry can complete the same job in 3 hours.<BR>\n" );
document.write( "a) How long would it take to complete the job if both Jerry and Jake worked<BR>\n" );
document.write( "together?<BR>\n" );
document.write( "b) How long would it take to complete the job if Jake starts the job two hours before<BR>\n" );
document.write( "Jerry joins him?\r<BR>\n" );
document.write( "\n" );
document.write( "I don't know how to set either question up </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #306916 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=306916\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jake can complete a job in 5 hours while Jerry can complete the same job in 3 hours.<BR>\n" );
document.write( "a) How long would it take to complete the job if both Jerry and Jake worked<BR>\n" );
document.write( "together?<BR>\n" );
document.write( "Jake rate = 1/5 job/hr<BR>\n" );
document.write( "Jerry rate = 1/3 job/hr<BR>\n" );
document.write( "Together rate = 1/x job/hr<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/5 + 1/3 = 1/x<BR>\n" );
document.write( "3x + 5x = 15<BR>\n" );
document.write( "8x = 15<BR>\n" );
document.write( "x = 15/8 = 1 7/8 hrs = 1hr+(5/8)60 min = 1hr 52.5 minutes<BR>\n" );
document.write( "==============================================================<BR>\n" );
document.write( "b) How long would it take to complete the job if Jake starts the job two hours before Jerry joins him?<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Jake will complete 2(1/5) = 2/5 of the job.<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Solve:<BR>\n" );
document.write( "(1/5)x + (1/3)x = 3/5 job<BR>\n" );
document.write( "----<BR>\n" );
document.write( "3x + 5x = 9<BR>\n" );
document.write( "8x = 9<BR>\n" );
document.write( "x = 9/8 hrs = 1 hr 7.5 minutes<BR>\n" );
document.write( "=================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );