Problema Solution
The registration fee at a convention of the NCTM was $5 for members and $9 for non-members. If receipts at the convention were $4450 and 850 people were in attendance, How many member were registered?
Answer provided by our tutors
let
m = the number of members registered
n = the number of non-members registered
850 people were in attendance
m + n = 850
receipts at the convention were $4450
5m + 9n = 4450
by solving the system of equations
m + n = 850
5m + 9n = 4450
we find
m = 800 members
n = 50 non-members
click here to see the step by step solution of the system of equations
there were 800 members registered.