Arkansas Paci c operates a medium-sized saw mill. The mill prepares di erent types of wood that range from soft pine to hard oak according to a weekly schedule. Depending on the type of wood being milled, the demand for sharp blades varies from day to day according to the following 1-week (7-day) data:
Day Mon. Tues. Wed. Thurs. Fri. Sat. Sun.
Demand (blades) 24 12 14 20 18 14 22
The mill can satisfy the daily demand in the following manner:
Buy new blades at the cost of $12 per blade.
Use an overnight sharpening service at the cost of $6 per blade.
Use a 2-day sharpening service at the cost of $3 per blade.
Formulate this problem as a transportation model by writing out the parameter table and the corresponding LP.