math plz help!!!!!!!

which ratios form a proportion?

A) 4/5 , 20/25
B) 8/12 , 18/24
C) 1/3 , 7/24
D) 2/5 , 6/16

which ratio forms a proportion with 9/15?

A)3/6
B)2/3
C)12/30
D)6/10#####

which proportion has cross products of 5 x 24 and 8 x 15?

A)5/8=15/24
B)5/24=8/15
C)8/24=15/5####
D)15/8=5/24

plz check my answer and who do i'll thank them

thank you thank you thank you sooooo muuuuccchhhhh!!!!!!!!!!!

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  1. The second one is correct.

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    Ms. Sue
  2. so the rest are not.............ohh sorry i forgot the first one

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  3. The third one is also correct.

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    Ms. Sue
  4. an I think the first one is d also can you tell me how did you get does answer to learn thank you

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  5. The first one is not D.

    2/5 = 4/10 = 6/15
    As you can see, the fractions need to be equal. Simplify the larger fraction to find the smaller fraction. You can also cross multiply.

    http://www.mathsisfun.com/algebra/cross-multiply.html

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    Ms. Sue
  6. to get a cross-product in a proportion you multiply the numerator of one fraction by the denominator of the second
    your choice of 8/24 = 15/5 produces
    5x8 = 24x15, which is false

    choice A) 5/8 = 15/24 ---> 5x24 = 8x15 as requested

    for #1, or any of them
    to test if a proportion is true, write it down and take the crossproducts, if they are equal then the ratios are equal

    4/5, 20/25 ---> 100, 100, so yes that's the one
    you picked D
    2/5 , 6/16 ---> 32, 30 , NO!

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  7. A
    D
    B

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  8. so the answer is
    A
    D
    A

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  9. james and jullista are 100% WRONG i got a 1/3 the answers are

    b
    d
    b

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  10. julista is right it is

    A
    D
    A

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  11. thats not cool you guys keep giving the wrong answers the real ones are B D A, if ur in conexus i got 66.7% bc of layne and julista TRUST ME it shows which answers are right after its submited B D A PLEASE

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  12. Guys listen to layne and julitsa because they r both correct. If you are in connexus, the answers r

    A
    D
    A

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  13. OK GUY THE CORRCET PERSON IS NOT LAYNE OR JULITSA.......Anonymous IS CORRECT

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  14. Gaming Panda and Anonymous are correct

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  15. THANK YOU

    B
    D
    A

    100% correct

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  16. J-kid is correct out of everyone so stop fighting

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  17. I just took the quiz its A,D,A for sure they are not right about B,D,A or D,B,D trust me

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  18. IT IS

    A

    D

    A

    100% trust me itook the quick check!

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  19. the answer is B D A
    i JUST TOOK TO TEST
    TRUST ME

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  20. Anonymous and J Kid are both wrong, and the answer is

    A

    D

    A

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  21. i got 66.7 because the answers A D A the answers are B D A if your in connexus 7th grade

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  22. The answers are BDA

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  23. Correct answer are A D A TRUST ME NATSU your everyday End aka Fire Dragon

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  24. 4/5,20/25 4*25 = 100 5*20 = 100
    9/15, 6/10 9*10= 90 15*6 = 90
    5*24 and 8*15 both are 120 each so 5*24= 120 8*15= 120
    A
    D
    A
    For proportions in connexus

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  25. 1. B 2. D 3. A is 100% correct on conexus

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  26. A
    D
    A
    Is correct

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  27. B

    D

    A

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  28. Thank you lun you are soooo awesome

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  29. @lun thanks man

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  30. lun is right trust me

    1.b

    2.d

    3.a

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  31. Thanks for the answer.

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  32. I SWEAR THE ANSWERS ARE A.D.A I JUST GOT 66.7 USING B.D.A, THE ANSWERES ARE 1.8/12,18/24 2.6/10 3.5/8 = 15.24

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  33. Its A.D.A no lie i just got a 66.7 because i got a wrong

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  34. GUYS! STOP! For connections, there are different answers. For PCA, the answers are
    1:A
    2:D
    3:A.

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  35. EVERYONE i got a 2/3 66.7% !!! The real ANSWERS ARE
    A
    D
    A
    100%
    ANONYMOUS YOUR WRONG!!!

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  36. The REAL answers are
    A
    D
    A
    Trust me these are the answers for CCA

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  37. what about for waca

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  38. A,d,a
    Thanks all

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  39. 1.a2.D3.a

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