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Mathematics 8 Online
OpenStudy (readergirl12):

A bag contains 8 black marbles, 16 white marbles, 14 red marbles, and 10 green marbles. A marble is drawn at random from the bag. What is the probability that the marble drawn will not be white? A.1/3 B.2/3 C.3/4 D.15/16

OpenStudy (anonymous):

first count how many marbles are in the bag

OpenStudy (readergirl12):

48

OpenStudy (anonymous):

now find how many non-white marbles there are

OpenStudy (readergirl12):

32

OpenStudy (anonymous):

ok, so we divide the number of non white marbles over the total amount of marbles

OpenStudy (anonymous):

This gives 32/48

OpenStudy (anonymous):

now simplify the fraction

OpenStudy (anonymous):

It's A because if you keep simplifing you get 1/3

OpenStudy (anonymous):

Its not A

OpenStudy (readergirl12):

2/3

OpenStudy (anonymous):

correct, good job

OpenStudy (readergirl12):

It's B? :D

OpenStudy (anonymous):

thats right

OpenStudy (anonymous):

yes it is A

OpenStudy (anonymous):

how is it A?

OpenStudy (readergirl12):

Thank you soo much.. xD

OpenStudy (anonymous):

32/48 divide both by 8 you get 8/24 then yo divide by 4 and you get 2/6. 2/6 divided by 2 is 1/3.

OpenStudy (anonymous):

So yes A is correct.

OpenStudy (anonymous):

https://www.wolframalpha.com/input/?i=32%2F48

OpenStudy (anonymous):

How is it 2/3?!?!?! I'm so confused!!!!!!

OpenStudy (anonymous):

48 divided by 8 is 6 4/6 divide both by 2 2/3

OpenStudy (anonymous):

and 32 divided by 8 is 4

OpenStudy (anonymous):

medal?

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