Wendy initially has 6 hours of pop music and 3 hours of classical music in her collection. Every month onwards, the hours of pop music in her collection is 9% more than what she had the previous month. Her classical music does not change. Which function shows the total hours of music she will have in her collection after x months?

f(x) = 6(1.09)x + 3

f(x) = 3(1.09)x + 6

f(x) = 6(0.09)x + 3

f(x) = 3(0.09)x+ 6
I think its the first one... am I right?

Question

Wendy initially has 6 hours of pop music and 3 hours of classical music in her collection. Every month onwards, the hours of pop music in her collection is 9% more than what she had the previous month. Her classical music does not change. Which function shows the total hours of music she will have in her collection after x months?

 f(x) = 6(1.09)x + 3

 f(x) = 3(1.09)x + 6

 f(x) = 6(0.09)x + 3

 f(x) = 3(0.09)x+ 6 
I think its the first one...  am I right?

nothingwasthesame · Answer

no i would eliminate a and b

richman98 · Answer

9% is 0.09 in decimal form

anonymous · Answer

Reasoning?

nothingwasthesame · Answer

9 divided into a number is 0.09 and its times 6 so it would be

anonymous · Answer

Woops. Sorry. Replying to nothingwasthesame post...

richman98 · Answer

choices a,b , and d would not work

anonymous · Answer

0.54.

nothingwasthesame · Answer

i said eliminate this two because of 1.09 which is not right so

richman98 · Answer

SO f(x)=6(0.09)+ 3 would be it

anonymous · Answer

Yeah, I did choice C and it was wrong.

nothingwasthesame · Answer

i can figure this out my dear just wait while i do the math

anonymous · Answer

lol. No problem! Just glad I got people who know what there talking about.

anonymous · Answer

what was the answer

anonymous · Answer

Haha...  doing the same test?

anonymous · Answer

Do your math and base it off of a or d. Can't remember which was right...  sorry.

anonymous · Answer

The right answer is A