Let's assume
number of matinee admission tickets =x
number of student admission tickets =y
number of regular admission tickets =z
First equation:
regal cinemas sold a total of 8500 movie tickets.
so, we get

Second equation:
a matinee admission costs $5,
student admission is $6 all day,
and regular admissions are $8.50
proceeds totalled 64000
we will get

Third equation:
twice as many students tickets were sold as matinee tickets

so, we got system of equations as



we can solve for x , y and z
and we get



number of matinee admission tickets =971
number of student admission tickets =1941
number of regular admission tickets =5588...........Answer