Final answer:
Carter Production, Inc. must calculate February's material requirements based on its own production and the desired ending inventory for March. By first determining March's material requirement and factoring in February's production needs, the calculation shows that Carter must purchase 174,000 pounds of material in February.
Step-by-step explanation:
To calculate the pounds of material Carter Production, Inc. needs to purchase in February, we first determine March's production needs since February's desired ending inventory is 20% of March's production. March requires 85,000 units, and since each unit requires two pounds of material, March will require 85,000 units * 2 pounds/unit = 170,000 pounds of material. To calculate February's ending inventory, we take 20% of March's material requirement, which is 0.20 * 170,000 pounds = 34,000 pounds.
Now, we also compute February's total material needs, which includes what will be produced in February plus the ending inventory for March. February's production is 70,000 units, so it needs 70,000 units * 2 pounds/unit = 140,000 pounds of material for production, plus the 34,000 pounds for March's ending inventory, totaling 140,000 pounds + 34,000 pounds = 174,000 pounds. Therefore, Carter Production, Inc. needs to purchase 174,000 pounds of material in February.