document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=294082>Question 294082</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question 1: Sarah takes 6 hours to complete a job which mary could do in half the time. how many hours would it take to complete the job if they both worked together?\r<BR>\n" );
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document.write( "Question 2: The time it takes to empty a tank varies inversely as the rate of pumping. if a pump working at 600 kl/min takes 45 minutes to empty a tank. how long would it take to empty the same tank if the rate was increased to 1000 kl/min?\r<BR>\n" );
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document.write( "Any help will be greatly appreciated. thx you very much in advance. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #212200 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=212200\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Question 1: Sarah takes 6 hours to complete a job which mary could do in half the time.<BR>\n" );
document.write( " how many hours would it take to complete the job if they both worked together?<BR>\n" );
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document.write( "From the given information we know Mary takes 3 hrs to complete the job<BR>\n" );
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document.write( "Let t = time required when they work together<BR>\n" );
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document.write( "Let the competed job = 1<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F6 ALIGN=MIDDLE  ALT=\"t%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F3 ALIGN=MIDDLE  ALT=\"t%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "Multiply by 6, results:<BR>\n" );
document.write( "t + 2t = 6<BR>\n" );
document.write( "3t = 6<BR>\n" );
document.write( "t = 2 hrs working together<BR>\n" );
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document.write( "Question 2: The time it takes to empty a tank varies inversely as the rate of pumping.<BR>\n" );
document.write( " if a pump working at 600 kl/min takes 45 minutes to empty a tank.<BR>\n" );
document.write( " how long would it take to empty the same tank if the rate was increased to 1000 kl/min?<BR>\n" );
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document.write( "Let x = time required when pumping 1000kl/min<BR>\n" );
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document.write( "An inverse ratio equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%2F1000 ALIGN=MIDDLE  ALT=\"600%2F1000\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F45 ALIGN=MIDDLE  ALT=\"x%2F45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "1000x = 600 * 45<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=27000%2F1000 ALIGN=MIDDLE  ALT=\"27000%2F1000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 27 min when it pumps at 1000kl/min  </SPAN>\n" );
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