Mountain Springs Water Company has two departments, Purifying and Bottling. The Bottling Department had 3,990 liters in beginning work in process inventory (30% complete). During the period, 57,940 liters were completed. The ending work in process was 5,100 liters (70% completed). All inventories are costed by the first-in, first-out method. What is the total equivalent units for direct materials (using the FIFO method) if materials were added at the beginning of the process? fill in the blank 1 equivalent units for materials