<PRE><B>Question 1171012</B>
&lt;br&gt;
{{{1200+50m &lt;= 10000}}}
{{{50m &lt;= 8800}}}
{{{m &lt;= 176}}}&lt;br&gt;
The maximum weight of the truck on the bridge limits the amount of cement to at most 176 cubic meters.&lt;br&gt;
The cost effectiveness constraint means that the amount of cement in each load must be at least 100 cubic meters.&lt;br&gt;
ANSWERS:&lt;br&gt;
The number of cubic meters of cement can be any number from 100 to 176, inclusive.&lt;br&gt;
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.&lt;br&gt;
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