1. Durply

2. anonymous

3. anonymous

@InExileWeTrust

4. xapproachesinfinity

the last one can be found using proportion 100=4 750=x x=(750 times 4)/100

5. xapproachesinfinity

hmm second i guess proportions too

6. xapproachesinfinity

actually the second is two equations that you need to solve

7. xapproachesinfinity

well seems onece again i'm wrong proportions works with the second 22 out of 50 are females out of 800 x=800 times 22 all divided by 50

8. xapproachesinfinity

see how much is that

9. anonymous

22 divided by 50?

10. xapproachesinfinity

noo 800 times 22 all divided by 50

11. xapproachesinfinity

let's the first...

12. anonymous

352

13. math&ing001

First one, you have 30 fish among 84, that's $$\frac{ 30*100 }{ 84 } = 35.7$$% of total fish taged, and you need to find what's the number at 100%. Second, same thing 22 females out of 50, that's 44%. Find 44% of 800. Last 4 wires are defective out of 100, that's 4% defective wires, find 4% of 750.

14. xapproachesinfinity

in case you got confused my way and his are the same alright proportions are tied to percentages :)

15. xapproachesinfinity

you still get the same answers

16. xapproachesinfinity

woow the guy is gone i'm speaking to my self lol

17. anonymous

so question 5 is 352

18. xapproachesinfinity

yes

19. anonymous

what about questions 6 and 4?

20. xapproachesinfinity

21. xapproachesinfinity

6 same way you get 30

22. anonymous

ok thanks

23. xapproachesinfinity

no problem

24. anonymous

for #4 i got A?

25. xapproachesinfinity

seems good to me

26. math&ing001

Not quite... if the fish he tagged (180) represents 35.7% of the total, don't you think the number of total fish would actually be bigger ?

27. math&ing001

120*

28. anonymous

ya it should

29. anonymous

i think its B or C cause D is to big right?

30. xapproachesinfinity

i must say the language used in the first throws a bit off and that was the reason i skipped it in the first place

31. xapproachesinfinity

me*

32. xapproachesinfinity

in other words i didn't quite understand the problem

33. math&ing001

Well we shouldn't be guessing if we can calculate: 120 is 35.7% of the total, so the total would be 120*100/35.7

34. anonymous

i got C

35. anonymous

@xapproachesinfinity could you give @math&ing001 a medal so that i could give you a medal, since you both were really a big help?

36. xapproachesinfinity

i did give him a medal

37. anonymous

Thanks

38. xapproachesinfinity

no problem