Higher Learning University must purchase 1100 computers from three suppliers. Supplier 1 charges $500 per computer plus a total delivery charge of $5000. Supplier 2 charges $350 per computer plus a total delivery charge of $4000. Supplier 3 charges $250 per computer plus a total delivery charge of $6000. Supplier 1 will sell the university at most 500 computers, Supplier 2, at most 900, and Supplier 3, at most 400. The minimum order from a supplier is 200 computers. Determine how to minimize the cost of purchasing the needed computers.

A1 Purchasing computers B F G m D 1 Purchasing computers 2 3 Supplier costs 4 Supplier 1 Supplier 2 Supplier 3 5 Delivery cost 6 Cost per computer 7 8 Minimum and maximum orders from Suppliers 9 Supplier 1 Supplier 2 Supplier 3 10 Maximum 11 Minimum 12 Supplier 1 Supplier 2 Supplier 3 Total ordered Required 13 14 Place order 15 16 Lower bound 17 18 Order size 19 20 Upper bound 21 22 Delivery cost 23 Computer cost 24 Total cost 25 26 27 28 29 30 31 32 33 34 35 36 37