Two departments of a firm, A and B, need different amounts of the same products. The following table gives the amounts of the products needed by the two departments.

These three products are supplied by two suppliers, Ace and Kink, with the unit prices given in the following table.

(a) Use matrix multiplication to find how much these two orders will cost at the two suppliers. The result should be a 2 × 2 matrix.
(b) From which supplier should each department make its purchase?

Transcribed Image Text:

Steel Plastic Wood Department A Department B 30 20 20 10 10 20 Ace Kink Steel 300 280 Plastic 150 100 Wood 150 200