anonymous
  • anonymous
need hlp
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
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
welshfella
  • welshfella
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
welshfella
  • welshfella
so what is the only possible option?

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welshfella
  • welshfella
Oh! he/she has gone..
anonymous
  • anonymous
sorry the connection failed
anonymous
  • anonymous
can u explain @welshfella
anonymous
  • anonymous
some hlp
anonymous
  • anonymous
@imqwerty
imqwerty
  • imqwerty
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.
anonymous
  • anonymous
why marble 1cannot be red its write was red above
anonymous
  • anonymous
@imqwerty
anonymous
  • anonymous
the answer is e but why
welshfella
  • welshfella
marble 1 is red
imqwerty
  • imqwerty
i saw it here :P - http://www.algebra.com/algebra/homework/word/travel/Travel_Word_Problems.faq.question.462855.html
welshfella
  • welshfella
marble 2 must be blue or white because there are only 3 colurs red white and blue
anonymous
  • anonymous
wt this link
anonymous
  • anonymous
yes u r right
anonymous
  • anonymous
but what is that link @imqwerty
welshfella
  • welshfella
if marble 2 is blue then marble 5 must also be blue and marble 3 is blues so that makes 3 blues
imqwerty
  • imqwerty
someone had asked same question nd that link has the answer to it :)
welshfella
  • welshfella
but if marble 2 is white then marble 5 is also white so that leaves one blue marble - marble 3 e is correct
anonymous
  • anonymous
i read the answer on the link but he write it the first marble not red but why
anonymous
  • anonymous
@imqwerty
welshfella
  • welshfella
thats a mistake. Marble 1 is red
imqwerty
  • imqwerty
yea
welshfella
  • welshfella
we are all human and sometimes make mistakes.
anonymous
  • anonymous
ok u r right thank u i understand @welshfella
anonymous
  • anonymous
u r the best
anonymous
  • anonymous
but 1 and 3 mean 1 or 3 1+3
welshfella
  • welshfella
ty - but i also make mistakes sometimes...
imqwerty
  • imqwerty
:)
anonymous
  • anonymous
@welshfella
anonymous
  • anonymous
but 1 and 3 mean 1 or 3 1+3
welshfella
  • welshfella
1 or 3
anonymous
  • anonymous
ok but the question is 10 marbles the answer u do is 5 marbles
welshfella
  • welshfella
Yes but only 5 marbles are drawn
welshfella
  • welshfella
- we are not concerned with the other 5.
anonymous
  • anonymous
yea he write it like this and write that he want 10 not 5
anonymous
  • anonymous
ok but why we do not put the other 5
anonymous
  • anonymous
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.
welshfella
  • welshfella
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.
anonymous
  • anonymous
ok thank u @welshfella u r the best
welshfella
  • welshfella
yw

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