Allocating common costs to joint products by physical units. As a result of the manufacturing process, the Blending Department of the Cooper Company produces two joint chemical products. During March 19X3, the total manufacturing costs of the goods transferred out of the department were $29,960. A total of 6,000 pounds of Salzine, with a sales value of $7 per pound, and 7,000 pounds of Ethalide, with a sales value of $9 per pound, were produced. Determine the cost per pound of each product if physical units are used as the basis for allocating common costs.