SOLUTION: Mr. Bertholf rents studio space at a music school to teach voice lessons. He charges $50 for a 30-minute lessons and pays a studio rental fee of $14 per hour. Mr. Bertholf has appr

Algebra ->  Functions -> SOLUTION: Mr. Bertholf rents studio space at a music school to teach voice lessons. He charges $50 for a 30-minute lessons and pays a studio rental fee of $14 per hour. Mr. Bertholf has appr      Log On


   

Question 1107141: Mr. Bertholf rents studio space at a music school to teach voice lessons. He charges $50 for a 30-minute lessons and pays a studio rental fee of $14 per hour. Mr. Bertholf has approximately $70 per month in business expenses. Let n represent the number of hours he teaches each month. Which function represents Mr.Bello's monthly income?
A. f(n)=36n+70
B. f(n)=50n-70
C. f(n)=36n-70
D. f(n)=86n-70
Found 2 solutions by josmiceli, ikleyn:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
$50 per 30 min lesson equls
$100/hr
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Subtract the rate of $14/hr
+100+-+14+=+86+
This would be the slope of the
straight line function
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D. +f%28n%29+=+86n+-+70+

Answer by ikleyn(52747) About Me  (Show Source):
You can put this solution on YOUR website!
.
My instruction is simple:


            OPEN  YOUR  EYES  AND  TURN  on  YOUR  MIND.



When they give you SO SIMPLE problems,   it is a NICE AND a BEST opportunity for you to exercise and to practice your mind.


Instead of it,   you ask the tutors to do this job instead of doing it on your own.