You can find an example of the curriculum for the Bachelor course of study in the course of study description on RWTH Aachen's central pages.

Curricula for Individual Application Subjects

The curricula for the mathematics Bachelor course of study in combination with application subjects physics, computer science, business administration, or economics, are all listed in the current exam regulation. The following links lead to the respective pages within the exam regulation.

Application Subject Computer Science (de) (Prüfungsordnung, p. 68, PDF)
Application Subject Physics (de) (Prüfungsordnung, p. 69, PDF)
Application Subject Business Administration (de) (Prüfungsordnung, p. 67, PDF)
Application Subject Economics (Prüfungsordnung, p. 70, PDF)