There are 20 bowls in a kitchen cabinet. The diameter of the bowls are either 6 inches or 5 inches. The diameter of all 20 bowls combined is 110 inches.
Which system of equations can be used to find the number of 6-inch bowls, x, and the number of 5-inch bowls, y, that are in the cabinet?
A. 5x+6y=110
6x+5y=20
B. x+y=20
5x+6y=110
C. x+y=20
6x+5y=110
D. x+y=110
6x+5y=20