znimon Group Title I don't understand what they want me to do or where to begin. Pre-calculus maybe a proof not sure one year ago one year ago

1. precal Group Title

with what

2. precal Group Title

3. znimon Group Title

its attached

4. precal Group Title

what course is this? looks like you are doing a proof

5. znimon Group Title

this is pre-caculus

6. znimon Group Title

calculus

7. precal Group Title

calculus or precal?

8. znimon Group Title

sorry for the confusion precalculus

9. precal Group Title

ok did not look like calculus

10. precal Group Title

looks like I might not be able to help after all but I can tell you that they multiply d to both sides to get this|dw:1346461339585:dw|

11. precal Group Title

not sure what is going on after that, I find all of those blanks confusing

12. precal Group Title

don't they have a lecture part prior to this?

13. znimon Group Title

I am supposed to fill in the blanks

14. precal Group Title

yes, I realize that but I am not following the logic to it. I am sure they are applying many algebraic properties along the way

15. znimon Group Title

Well thanks anyway dude

16. precal Group Title

sorry, maybe someone else will come help you. You can always close this problem and repost it but it might help if you write it out using draw (some people will not open attachments). btw I am a girl

17. znimon Group Title

alright I think I'll take my chances with the attachment since it would take me forever to write that out and it might not even be legible

18. helder_edwin Group Title

it says add $$a$$ to both sides so the 3rd line would be $\large a+\frac{ad}{b}<a+c$

19. znimon Group Title

where does it say add a?

20. znimon Group Title

Ill take that on faith for now

21. helder_edwin Group Title

it is on the third line to the right

22. helder_edwin Group Title

it also says simplify

23. znimon Group Title

"Adding a to both sides and simplifying, we see that" I see but I'm not sure what to do still. What do they want me to do for the next line?

24. znimon Group Title

put a common denominator on a?

25. helder_edwin Group Title

no. just what i wrote.

26. helder_edwin Group Title

then add the fractions on the left side $\large \frac{ab+ad}{b}<a+c$

27. helder_edwin Group Title

then factor $$a$$ $\large \frac{a}{b}\cdot(b+d)<a+c$

28. znimon Group Title

Thanks I think I get it now.

29. helder_edwin Group Title

then $$b+d$$ passes to the other side to divide $\large \frac{a}{b}<\frac{a+c}{b+d}$

30. helder_edwin Group Title

this covers the first part :)

31. znimon Group Title

is the second part different?

32. znimon Group Title

concept wise

33. helder_edwin Group Title

not at all, try it.

34. znimon Group Title

Thanks alot. I'm new. Should I keep the question open? Until I work it out?

35. helder_edwin Group Title

it's up to u. i'll be here for one more hour or so.

36. znimon Group Title

sweet thanks

37. helder_edwin Group Title

do u know how to call someone's atention??

38. helder_edwin Group Title

write @ to the left of his "name". like this @znimon

39. znimon Group Title

@helder_edwin it says my lines 3(half of line 3) and 4 are wrong. I have (b+d)/b and in the last blank I have (ab+cb)/(b+d)

40. znimon Group Title

of part 1

41. helder_edwin Group Title

the first two blanks (line 3) should be $$a$$

42. znimon Group Title

ok says my 5th and 7th blanks are wrong

43. helder_edwin Group Title

next line should be $\large ab+ad\qquad\text{and}\qquad a$

44. znimon Group Title

have that

45. helder_edwin Group Title

next line should be $\large b+d\qquad\text{and}\qquad a$

46. znimon Group Title

why isn't b+d divided by b

47. helder_edwin Group Title

u r factoring a from the denominator and just puting the dominator (b) under what u just factored

48. znimon Group Title

hmm I don't really get it

49. helder_edwin Group Title

it is this $\large \frac{r\cdot s}{m}=\frac{r}{m}\cdot s$

50. znimon Group Title

oh I get it not breaking the number into its prime factors

51. helder_edwin Group Title

so $\large \frac{ab+ad}{b}=\frac{a(b+d)}{b}=\frac{a}{b}\cdot(b+d)$

52. znimon Group Title

now*

53. znimon Group Title

got it thanks

54. znimon Group Title

so the final blank should be (a+c)/b+d

55. helder_edwin Group Title

the next (last) line would be $\large \frac{a+c}{b+d}$

56. helder_edwin Group Title

yes

57. znimon Group Title

hurray

58. helder_edwin Group Title

now do the next part

59. znimon Group Title

ok

60. helder_edwin Group Title

as i told u it's very similar

61. znimon Group Title

first two lines should both be c

62. helder_edwin Group Title

yes

63. helder_edwin Group Title

@znimon next??

64. znimon Group Title

finished

65. helder_edwin Group Title

great.

66. znimon Group Title

@helder_edwin finished and all correct

67. znimon Group Title

thanks again

68. helder_edwin Group Title

u r welcome