Where an employee works at a combination of hourly and piece rates,
the payment of a rate not less than one and one-half times the hourly or
piece rate applicable to the type of work being performed during the
overtime hours will meet the overtime requirements of the Act if the
provisions concerning piece rates (as discussed in Sec. 778.418) and
those concerning hourly rates (as discussed in Sec. 778.419) are
respectively met.