need hlp

- anonymous

need hlp

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- 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

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

so what is the only possible option?

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## More answers

- welshfella

Oh! he/she has gone..

- anonymous

sorry the connection failed

- anonymous

can u explain @welshfella

- anonymous

some hlp

- anonymous

@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

why marble 1cannot be red its write was red above

- anonymous

@imqwerty

- anonymous

the answer is e but why

- welshfella

marble 1 is red

- imqwerty

i saw it here :P -
http://www.algebra.com/algebra/homework/word/travel/Travel_Word_Problems.faq.question.462855.html

- welshfella

marble 2 must be blue or white because there are only 3 colurs red white and blue

- anonymous

wt this link

- anonymous

yes u r right

- anonymous

but what is that link @imqwerty

- welshfella

if marble 2 is blue then marble 5 must also be blue
and marble 3 is blues so that makes 3 blues

- imqwerty

someone had asked same question nd that link has the answer to it :)

- 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

i read the answer on the link but he write it the first marble not red but why

- anonymous

@imqwerty

- welshfella

thats a mistake. Marble 1 is red

- imqwerty

yea

- welshfella

we are all human and sometimes make mistakes.

- anonymous

ok u r right thank u i understand @welshfella

- anonymous

u r the best

- anonymous

but 1 and 3 mean 1 or 3 1+3

- welshfella

ty - but i also make mistakes sometimes...

- imqwerty

:)

- anonymous

@welshfella

- anonymous

but 1 and 3 mean 1 or 3 1+3

- welshfella

1 or 3

- anonymous

ok but the question is 10 marbles the answer u do is 5 marbles

- welshfella

Yes but only 5 marbles are drawn

- welshfella

- we are not concerned with the other 5.

- anonymous

yea he write it like this and write that he want 10 not 5

- anonymous

ok but why we do not put the other 5

- 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

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

ok thank u @welshfella u r the best

- welshfella

yw

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