document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=489529>Question 489529</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes my father 3 hours to plow our cornfield with his new tractor. Using the old tractor it takes me 5 hours. If we both plow for 1 hour before I go to school, how long will it take Dad to finish the plowing? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #333735 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=333735\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It takes my father 3 hours to plow our cornfield with his new tractor.<BR>\n" );
document.write( " Using the old tractor it takes me 5 hours.<BR>\n" );
document.write( " If we both plow for 1 hour before I go to school, how long will it take Dad to finish the plowing?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "let t = time it takes Dad to finish plowing<BR>\n" );
document.write( "let the completed job = 1 (a plowed field)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F5 ALIGN=MIDDLE  ALT=\"1%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28t%2B1%29%2F3 ALIGN=MIDDLE  ALT=\"%28t%2B1%29%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "Multiply by 15 to clear the denominators results:<BR>\n" );
document.write( "3 + 5(5+1) = 15<BR>\n" );
document.write( "3 + 5t + 5 = 15<BR>\n" );
document.write( "5t = 15 - 8<BR>\n" );
document.write( "5t = 7<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F5 ALIGN=MIDDLE  ALT=\"7%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "t = 1.4 hrs for Dad to finish<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check solution (Dad plowed for a total of 2.4 hrs)<BR>\n" );
document.write( "1/5 + 2.4/3 = <BR>\n" );
document.write( ".2 + .8 = 1; confirms our solution </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );