Explain how the constitution was finally ratified

Through votes in the individual state legislatures. According to Article VII of the Constitution, it would go into effect when nine of the 13 state legislatures approved the document.

Each of 13 states called Special Conventions

People from each state elected delegates to the conventions

Delegates choose whether to approve the Constitution for their state

At least 9 of 13 states had to approve for Constitution to be law of land

Explanation:

During the ratification of the constitution the founding fathers had to persuade 9 out of the 13 states to approve the new form of government. The states objections were mostly that they wanted a written document stating their rights. Rhode Island was one of the most antifederalists states.