Troy engines, ltd., manufactures a variety of engines for use in heavy equipment. the company has always produced all of the necessary parts for its engines, including all of the carburetors. an outside supplier has offered to sell one type of carburetor to troy engines, ltd., for a cost of $35 per unit. to evaluate this offer, troy engines, ltd., has gathered the following information relating to its own cost of producing the carburetor internally:

Brody corp. uses a process costing system in which direct materials are added at the beginning of the process and conversion costs are incurred uniformly throughout the process. beginning inventory for january consisted of 1,050 units that were 65% completed. 10,900 units were started into the process during january. on january 31, the inventory consisted of 500 units that were 50% completed. what would be the equivalent units for direct materials cost using the weighted average method?