Question

Jamie is interested in taking dance lessons. She will have to pay $35 for ballet shoes and an additional $20 per hour, h, for lessons. Write an expression that represents Jamie's total cost in terms of h.

A. 35h+20
B. 20h+35
C. 20h−35
D. 35−20h

Answer 1

The expression that represents Jamie's total cost for dance lessons in terms of hours is 20h + 35, where h is the number of hours of lessons she takes.

Step-by-step explanation:

The question asks for an expression that represents Jamie's total cost for dance lessons in terms of the number of hours, h, she takes them. Jamie has to pay a one-time fee for ballet shoes and an additional hourly rate for the lessons. To find the total cost, we must account for both the fixed cost of the ballet shoes and the variable cost that depends on the number of hours of lessons she takes.

Let's define the cost of ballet shoes as a fixed cost, which is $35. This amount does not change regardless of the number of hours Jamie takes dance lessons. Secondly, we have an hourly rate for lessons, which is $20 per hour. If Jamie takes h hours of lessons, the cost for the lessons will be $20 times h or 20h.

The total cost is then the sum of the fixed cost and the variable cost, which can be represented by the expression 20h + 35. This adds the fixed cost of the ballet shoes to the total cost of the lessons based on the hours Jamie attends.