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

`12 =(45+9x)/(x)`

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 =(45+9x)/(x)`

Hence the equation represents this scenario is
`12 =(45+9x)/(x)`