## iheartfood 3 years ago question attached inside... :) here are the answer choices tho :) A. P = 2M B. P = 10M C. P = 100M D. M = 2P

1. iheartfood

question!!!!!

2. iheartfood

hiya!! do u get this?? :)

3. jim_thompson5910

one sec while i read it

4. iheartfood

kk:)

5. jim_thompson5910

does it say anything about the base?

6. iheartfood

no thats all... what i attached is the question and then the answer choices...

7. jim_thompson5910

hmm ok

8. iheartfood

yeah... do u get it? :)

9. jim_thompson5910

yeah

10. iheartfood

awesome!! how do u do this??

11. jim_thompson5910

log(M/N) - log(P/N) = 5 - 7 log(M) - log(N) - (log(P) - log(N)) = 5 - 7 log(M) - log(N) - log(P) + log(N) = 5 - 7 log(M) - log(P) = 5 - 7 log(M/P) = -2 log(M/P) = -2 M/P = 10^(-2) ... Assuming the log is base 10 M/P = 0.01 P/M = 10 P = 10M

12. jim_thompson5910

oh wait, hold on, typo...

13. iheartfood

yeah I'm thinking its log base 10... :) and okay :)

14. jim_thompson5910

log(M/N) - log(P/N) = 5 - 7 log(M) - log(N) - (log(P) - log(N)) = 5 - 7 log(M) - log(N) - log(P) + log(N) = 5 - 7 log(M) - log(P) = 5 - 7 log(M/P) = -2 log(M/P) = -2 M/P = 10^(-2) ... Assuming the log is base 10 M/P = 0.01 P/M = 100 P = 100M

15. jim_thompson5910

fixed

16. iheartfood

kk so this is my answer?? C. P = 100M 100% sure ? :)

17. jim_thompson5910

yes

18. iheartfood

kk thx!!