A Contractor for the Military Is Looking for a New

Essay

A contractor for the military is looking for a new location for a supply depot. The depot will supply four bases whose tonnage (demand) and map coordinates are shown below. If management wants the depot to have a central location, what should be its map coordinates?
$$\begin{array} { | l | l | l | } \hline \text { Bases } & ( \mathrm { X } , \mathrm { Y } ) \text { Coordinates } & \text { Tonnage } \\\hline \text { Fort Able } & ( 40,110 ) & 30,000 \\\hline \text { Base Baker } & ( 70,50 ) & 60,000 \\\hline \text { Camp Charlie } & ( 90,20 ) & 35,000 \\\hline \text { Camp Delta } & ( 70,80 ) & 75,000 \\\hline\end{array}$$