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IrinaK [193]
3 years ago
13

Three classes of school children are selling tickets to the school play. The number of tickets sold by these classes, and the nu

mber of children in each of the classes have been read into these variables: tickets, tickets, tickets 3 and class1, class2, class3. Write an expression for the average number of tickets sold per school child.
Mathematics
1 answer:
Westkost [7]3 years ago
3 0

Answer:

The expression for the average number of tickets sold per school child is:

M = \frac{tickets*class1 + tickets2*class2 + tickets3*class3}{class1 + class2 + class3}

Step-by-step explanation:

The average number of tickets sold per school child is the weighted mean calculus between the number of tickets sold by these classes and the number of children in each classes.

This is the multiplication between the number of tickets sold by these classes and the number of children in each classes divided by the total weight(in this exercise, the total weight is the total number of school child).

So, the expression for the average number of tickets sold per school child is:

M = \frac{tickets*class1 + tickets2*class2 + tickets3*class3}{class1 + class2 + class3}

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If John has pairs of red, orange, yellow, blue and green socks, how many can he wear them in over 5 days, repetition is allowed
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Answer:

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Step-by-step explanation:

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Which means that John has 5 different colors pairs of socks.

We are asked to find out in how many ways can he wear them over 5 days.

1st Day:

On the first day John has 5 ways to choose from.

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