SOLUTION: Last Friday, Formax cinemas sold a total of 170 movie tickets. Tickets can be bought in one of 3 ways : a child admission costs $5, student admission is $6 and regular admissions

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Question 1037522: Last Friday, Formax cinemas sold a total of 170 movie tickets. Tickets can be bought in
one of 3 ways : a child admission costs $5, student admission is $6 and regular
admissions are $8.50. Proceeds totaled $970. The number of child tickets sold was
double that of student tickets.
Write a system of equations that can be used to find the number of each type of tickets
sold. You may use any method (Crammers rule, Inverse matrix, ERO’S) to solve the
system of equations.
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
ASSIGN VARIABLES
x    child
y    student
z    regular


WRITE THE SYSTEM
x=2y
-
system%28x%2By%2Bz=170%2C5x%2B6y%2B8.5z=970%2Cx=2y%29

SIMPLIFY THE SYSTEM

SOLVE THE SYSTEM