A double-slit system with individual slit widths of 0.030 mm and a slit separation of 0.18 mm is illuminated with 500 nm light directed perpendicular to the plane of the slits. What is the total number of complete bright fringes appearing between the two first- order minima of the diffraction pattern? (Do not count the fringes that coincide with the minima of the diffraction pattern.)