Question

Justin has a home-based business putting on children's parties. He charges $30 to design the party and then $10.00 per child. Write a function rule that relates the total cost of the party to the number of children n.

Answer 1

The total cost of the party (C), can be expressed as;

C=10 n+30, where n is the number of children

Explanation:

Step 1

We can use the expression below to calculate the total cost of the party as shown;

C=F+(V×n)

where;

C=total cost of the party

F=fixed cost to design party

V=cost per child

n=number of children at the party

In our case;

F=$30

V=$10

n=n

replacing;

C=30+(10×n)

C=30+10 n

The total cost of the party (C), can be expressed as;

C=10 n+30, where n is the number of children