Question

Just check my work please :)
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Answer 1

Paul teaches the guitar in groups of three students. He rents a room for the guitar classes at $250 per month. He charges $30 per hour per student. Paul teaches six groups of students, and his net earnings per month are $1,910.

Answer 2

Part A: If each student learns guitar for the same number of hours, write an equation that can be used to calculate the number of hours each student learns guitar in a month. (5 points)

Part B: How many hours did each student learn guitar each month? Show your work and justify each step of your work. (5 points)

Answer 3

What I said:

For A:
540x-250=1910 where x is the number of hours each student learns guitar in a month.

For B:
540x-250=1910
540x = 2160
x = 40
The answer would be each student learns the guitar 4 hours each month

Answer 4

where do you get 540x from in part A ?

Answer 5

well actually it is 18(30x)-250=1910 but I simplified it

Answer 6

making it 540x-250=1910

Answer 7

am I right @SolomonZelman

Answer 8

how to you get `18`(30x)-250=1910 ?
He teaches 6 groups of students, and we don't know how many are there in each group.

Answer 9

hmm... what would you have done?

Answer 10

All I am doing is reading what you wrote in the directions of the question.
`6` `(30x)` `-250` `=` `1910` with this I am going only for each group.

You aren't given how many people are there in a group, so how would I know about EACH student ?

Answer 11

I dont know.... but if i do 18(30x)-250=1910 then x = 4 exactly