document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1171012>Question 1171012</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The weight of a cement truck on its way to a construction site is given by W= 1200 +50m, where W is the combined weight of the truck and its contents in Ibs and m is the weight of each cubic metre of cement.\r<BR>\n" );
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document.write( "The truck must pass over a bridge  with a maximum weight of 10, 000Ibs.<BR>\n" );
document.write( "To be cost effective, the truck needs to carry at least 100m^3 per trip\r<BR>\n" );
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document.write( "Determine the possible values for W and m in this situation. </SPAN>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200%2B50m+%3C=+10000 ALIGN=MIDDLE  ALT=\"1200%2B50m+%3C=+10000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50m+%3C=+8800 ALIGN=MIDDLE  ALT=\"50m+%3C=+8800\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+%3C=+176 ALIGN=MIDDLE  ALT=\"m+%3C=+176\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "The maximum weight of the truck on the bridge limits the amount of cement to at most 176 cubic meters.<br><BR>\n" );
document.write( "The cost effectiveness constraint means that the amount of cement in each load must be at least 100 cubic meters.<br><BR>\n" );
document.write( "ANSWERS:<br><BR>\n" );
document.write( "The number of cubic meters of cement can be any number from 100 to 176, inclusive.<br><BR>\n" );
document.write( "The weight of a truck with 100 cubic meters of cement is 1200+50(100) = 6200 pounds.  The weight of a truck with 176 cubic meters of cement we already know is 10000 pounds. So the possible weights of the trucks are from 6200 pounds to 10000 pounds, inclusive.<br><BR>\n" );
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