AJSA Regional and National Junior Cattlemen's Practice Test

In budgeting feed costs, you must charge each component of the animal’s diet with its own price. Multiply how many pounds of each feed you give by the price per unit for that feed, then add the results for all feeds. This captures the reality that different feeds have different costs. For example, if you feed X pounds of a feedstuff at a cost of C1 per pound and Y pounds of hay at a cost of C2 per pound, the total feed cost is X*C1 + Y*C2. The expression that does exactly this—pounds of each feed multiplied by that feed’s cost per unit and then summed with hay cost—embodies that calculation. Other options either use a single price for all feeds or describe the total cost in a way that doesn’t show how the cost is built up from each feed component.