37 A paint company has two types of bases from which it blends two types of paints: Tuffcoat and Satinwear.

Each base has a certain proportion of ingreditheir ents X, Y, and Z, as shown in table 37, along with costs.

INGREDIENT X INGREDIENT Y INGREDIENT Z COST/GALLON Paint base A 25% 34% 10% $4.50 Paint base B 35% 42% 15% $6.50