Final answer:
The minimum affirmative vote required to adopt a motion with twenty-seven members is 14, which represents a simple majority. This assumes that no special supermajority is required for this particular motion.
Step-by-step explanation:
The minimum affirmative vote required to adopt a motion in a meeting with twenty-seven members depends on the rules set for the majority. Typically, a simple majority is needed for a motion to pass. This means more than half of the votes must be in the affirmative. Considering there are 27 members in this scenario, half of 27 is 13.5. Since you cannot have half a vote, you would need at least 14 affirmative votes to have a simple majority and adopt the motion.
In cases where a supermajority is required, the threshold could be higher, such as two-thirds or three-fourths of the votes, depending on the specific rules of the organization's voting procedures. However, nothing in the provided information suggests that a supermajority is required here; therefore, the assumption is for a simple majority.
Furthermore, for an assembly or chamber to do business, there must be a quorum present, which means a majority of the members are present. It is important to note that the full majority need not vote, but they must be present and capable of voting.