Aria is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Aria will earn $20 every time one of her songs is played in a commercial and she will earn $80 every time one of her songs is played in a movie. Aria earned a total of $400 in royalties on 11 commercials and movies. Determine the number of commercials and the number of movies on which Aria's songs were played.