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anonymous

  • one year ago

need hlp

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  1. anonymous
    • one year ago
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    Marble 1 was red MArble 2 was not red Marble 3 was blue Marble 4 was the same color as marble 1 Marble 5 was the same color as marble 2 A jar contained 10 marbles-some red,some white, and some blue. The information above is about 5 marbles that were drawn from the jar. IF x is the total number of blue marbles drawn, which of the following statements must be true? a) The only possible value is x is 1 b)The only possible value is x is 2 c)The only possible value is x is 3 d)The only possible value is x are 1 and 2 e)The only possible value is x is 1 and 3

  2. welshfella
    • one year ago
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    Marble 2 is either a white or a blue If its a blue then Marble 5 will be a blue making x = 3 If marble 2 is white then marble 5 must also be white making x = 1

  3. welshfella
    • one year ago
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    so what is the only possible option?

  4. welshfella
    • one year ago
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    Oh! he/she has gone..

  5. anonymous
    • one year ago
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    sorry the connection failed

  6. anonymous
    • one year ago
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    can u explain @welshfella

  7. anonymous
    • one year ago
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    some hlp

  8. anonymous
    • one year ago
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    @imqwerty

  9. imqwerty
    • one year ago
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    We wish to find which of the five marbles could be blue (be careful about "which of the following statements MUST be true" followed by "possibilities," it only asks for all possible values). We know that marble 1 cannot be red. Marble 2 may or may not be blue. Marble 3 is obviously blue. Marble 4 cannot be blue because marble 1 is red. Marble 5 is the same color as marble 2, which could be blue. Here, we note that marble 3 is blue and marbles 2 and 5 are either both blue or both a different, non-blue color. Hence, the only possible values of x are 1 and 3.

  10. anonymous
    • one year ago
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    why marble 1cannot be red its write was red above

  11. anonymous
    • one year ago
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    @imqwerty

  12. anonymous
    • one year ago
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    the answer is e but why

  13. welshfella
    • one year ago
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    marble 1 is red

  14. imqwerty
    • one year ago
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    i saw it here :P - http://www.algebra.com/algebra/homework/word/travel/Travel_Word_Problems.faq.question.462855.html

  15. welshfella
    • one year ago
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    marble 2 must be blue or white because there are only 3 colurs red white and blue

  16. anonymous
    • one year ago
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    wt this link

  17. anonymous
    • one year ago
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    yes u r right

  18. anonymous
    • one year ago
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    but what is that link @imqwerty

  19. welshfella
    • one year ago
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    if marble 2 is blue then marble 5 must also be blue and marble 3 is blues so that makes 3 blues

  20. imqwerty
    • one year ago
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    someone had asked same question nd that link has the answer to it :)

  21. welshfella
    • one year ago
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    but if marble 2 is white then marble 5 is also white so that leaves one blue marble - marble 3 e is correct

  22. anonymous
    • one year ago
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    i read the answer on the link but he write it the first marble not red but why

  23. anonymous
    • one year ago
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    @imqwerty

  24. welshfella
    • one year ago
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    thats a mistake. Marble 1 is red

  25. imqwerty
    • one year ago
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    yea

  26. welshfella
    • one year ago
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    we are all human and sometimes make mistakes.

  27. anonymous
    • one year ago
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    ok u r right thank u i understand @welshfella

  28. anonymous
    • one year ago
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    u r the best

  29. anonymous
    • one year ago
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    but 1 and 3 mean 1 or 3 1+3

  30. welshfella
    • one year ago
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    ty - but i also make mistakes sometimes...

  31. imqwerty
    • one year ago
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    :)

  32. anonymous
    • one year ago
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    @welshfella

  33. anonymous
    • one year ago
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    but 1 and 3 mean 1 or 3 1+3

  34. welshfella
    • one year ago
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    1 or 3

  35. anonymous
    • one year ago
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    ok but the question is 10 marbles the answer u do is 5 marbles

  36. welshfella
    • one year ago
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    Yes but only 5 marbles are drawn

  37. welshfella
    • one year ago
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    - we are not concerned with the other 5.

  38. anonymous
    • one year ago
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    yea he write it like this and write that he want 10 not 5

  39. anonymous
    • one year ago
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    ok but why we do not put the other 5

  40. anonymous
    • one year ago
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    A jar contained 10 marbles-some red,some white, and some blue. The information above is about 5 marbles that were drawn from the jar.

  41. welshfella
    • one year ago
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    Don't worry about why there are a total of 10 marbles . That does not affect the answer . He might well have put 15 marbles - the answer would still be the same.

  42. anonymous
    • one year ago
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    ok thank u @welshfella u r the best

  43. welshfella
    • one year ago
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    yw

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