Final answer:
In a kanban system, the number of production cards needed can be calculated by determining the number of containers needed. For the given scenario, Sonoma Candies Inc. would need 50 production cards for their SC-007 sub-assembly.
Step-by-step explanation:
In a kanban system, production cards are used to signal the need for more parts or materials. Each container of parts typically has a production card associated with it. To determine the number of production cards needed, you need to calculate the number of containers needed and round up to the nearest whole number.
Given that Sonoma Candies Inc. uses containers that hold 25 units each and they use 1250 units in a ten-hour day, the number of containers needed can be calculated by dividing the total units used by the number of units per container:
Number of containers needed = Total units used / Units per container
Plugging in the values:
Number of containers needed = 1250 units / 25 units per container = 50 containers
Therefore, Sonoma Candies Inc. would need 50 production cards for their SC-007 sub-assembly.