Question

Justine enrolls in a music program. The cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson. If the average cost per music lesson is $12 and Justine has taken x classes, which equation represents this scenario? NextReset

Answer 1

45+ X(9+12)=Y is the best equation that i can think of

Answer 2

Answer:

$12 =\frac{45+9x}{x}$

Step-by-step explanation:

Given : The cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson.

To Find: If the average cost per music lesson is $12 and Justine has taken x classes, which equation represents this scenario?

Solution:

Cost of registration = $45

Let x be the number of lessons

Cost of 1 lesson = $ 9

So, Cost of x lessons = 9x

So, Total cost for x lessons= Registration fee + Lessons Fee

                                            =$45+9x$

Now we are given that the average cost per music lesson is $12 .

So, $Mean =\frac{\text{Sum of all observations}}{\text{Total no. of observations}}$

$12 =\frac{45+9x}{x}$

Hence the equation represents this scenario is  $12 =\frac{45+9x}{x}$