Answer:
52·s + 2·a = [2] × ([26·s] + [a])
Step-by-step explanation:
The number of classes Mr. Fox takes to the museum = 2 classes
The number of tickets Mr. Fox orders = The number of students and teachers in the two classes
The number of students paid for by one of the classes = The number of students paid for by the other class
The number of adult paid for by one of the classes = The number of adult paid for by the other class
The expression for the total cost of the ticket is 52·s + 2·a
Let 'c' represent the total cost for each class
Therefore, given that each class pays for the same number of students and adults, we have;
2 × c = 52·s + 2·a
∴ c = (52·s + 2·a)/2 = 26·s + a
Therefore, given that we have 2 classes, we get;
52·s + 2·a = 2 × (26·s + a)
