Question

Three classes of school children are selling tickets to the school play. the number of tickets sold by these classes, and the number of children in each of the classes have been read into these variables:tickets1, tickets2, tickets3 and class1, class2, class3. write an expression for the average number of tickets sold per school child. submit

Answer 1

The average number of tickets sold per school child is calculated by dividing the total tickets sold by all classes by the total number of students in those classes.

Step-by-step explanation:

To calculate the average number of tickets sold per school child across three classes, you need to divide the total number of tickets sold by the total number of children in the classes. The expression for this calculation would be:

(tickets1 + tickets2 + tickets3) / (class1 + class2 + class3)

This formula adds up all the tickets sold by each class and divides that sum by the total number of students across all three classes, giving the average tickets sold per student.

Answer 2

What you should do for this case is write a weighted average to represent the problem.
We have then:
Average = (((tickets1) * (class1)) + ((tickets2) * (class2)) + ((tickets2) * (class3))) / ((class1) + (class1) + (class1))
answer:
an expression for the average number of tickets sold per school child is
Average = (((tickets1) * (class1)) + ((tickets2) * (class2)) + ((tickets2) * (class3))) / ((class1) + (class1) + (class1))