What was the great compromise at the constitutional convention? a congress was divided into two houses the senate was seated equally by state: the house of representatives was seated by population b only three-fifths of the enslaved population would be counted when calculating each state's representation in congress c some powers were given to the states, some to the federal government, and some to both d knowing that george washington woul be the first president, people at the convention wrote the powers of the president with him in mind