Problema Solution

A group of 19 student want to see the show at the planetarium. Tickets cost $11 for each student who is a member of the planettarium's frequent visitor program and $13 for each student who is not a member. The total cost of the students' tickets is $209.

Answer provided by our tutors

Let 'm' stand for the number of member tickets and 'n' stand for the number of non-member tickets. From the given, we can write:

n+m=19

11m+13n=209


using Algebrator to solve for 'm' and 'n', we get:

m=19

n=0


All of the students are members.