Question

Francis teaches the piano. He charges each student an enrollment fee of $100 plus $15 per hour of piano lessons. The average cost of lessons for a

student per hour is $25
If h represents the number of hours a student spends in lessons, which equation can be used to find the value of h?

Answer 1

The first one should be right. Since the teacher is charging $15 per hour of the piano lesson then it can't be any of the answers of $100h. The answer can't be C, the third one, since you're adding the enrollment fee to the cost of every piano lesson it would be wrong to subtract the $100. Hope that helps!

Explanation:

The answer will the answer on the top $25=$100+$15h over h

Answer 2

Answer: The number of hours is 10 hours.

Explanation:

Since we have given that

Average cost of lessons = $25

let h be the number of hours a student spends in lessons.

Since each student has fee of $100 plus $15 per hour.

So, According to question, it becomes,

`25=(100+15h)/(h)\\\\25h=100+15h\\\\25h-15h=100\\\\10h=100\\\\h=(100)/(10)\\\\h=10`

Hence, the number of hours is 10 hours.