document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=351005>Question 351005</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ornery and sly company has a contract to dig a tunnel though bald mountain. Crew A start at the west end and digs at 9 meters per day . Let X be the number of days Crew A has been digging . Crew B starts at the east end two days after Crew A and digs at 12 meters per day.<BR>\n" );
document.write( "a. show rate, tme and distance each crew has dug.<BR>\n" );
document.write( "b. after how many days will the crews have dug the same distance?<BR>\n" );
document.write( "c. The total length of the tunnel is to be 2000 meters . write an equation stating this fact. Then solve the equation to find out how many days it takes to dig the tunnel from the time Crew A starts.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #250881 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=250881\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ornery and sly company has a contract to dig a tunnel though bald mountain.<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Crew A start at the west end and digs at 9 meters per day . Let X be the number of days Crew A has been digging .<BR>\n" );
document.write( "---<BR>\n" );
document.write( "show rate, tme and distance each crew has dug.<BR>\n" );
document.write( "distanceA = 9x meters<BR>\n" );
document.write( "time = x days<BR>\n" );
document.write( "rate = 9 meters per day <BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "Crew B starts at the east end two days after Crew A and digs at 12 meters per day.<BR>\n" );
document.write( "---<BR>\n" );
document.write( "show rate, tme and distance each crew has dug.<BR>\n" );
document.write( "distanceB = 12(x-2) = 12x-24 meters<BR>\n" );
document.write( "time = x-2 days<BR>\n" );
document.write( "rate = 12 meters per day<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( " <BR>\n" );
document.write( "b. after how many days will the crews have dug the same distance?<BR>\n" );
document.write( "Solve 9x = 12x-24<BR>\n" );
document.write( "3x = 24<BR>\n" );
document.write( "x = 8 days<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "c. The total length of the tunnel is to be 2000 meters . write an equation stating this fact. Then solve the equation to find out how many days it takes to dig the tunnel from the time Crew A starts.<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "distanceA + distanceB = 2000<BR>\n" );
document.write( "9x + 12x-24 = 2000<BR>\n" );
document.write( "21x = 2024<BR>\n" );
document.write( "x = 96.38 days<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" );