Unless otherwise provided in the articles of incorporation or the bylaws, members holding one-tenth of the votes entitled to be cast, represented in person or by proxy, constitute a quorum at a meeting of members. However, in no event may a quorum consist of less than one-tenth of the votes entitled to vote at a meeting. If a quorum is present, the affirmative vote of a majority of the votes represented at the meeting and entitled to vote on the subject matter is the act of the members, unless the vote of a greater number is required by this chapter or the articles of incorporation or the bylaws.