In a bag containing black and white marbles, of the marbles are black.
Which could be the numbers of black and white marbles in the bag?
A.
3 black and 8 white
B.
12 black and 20 white
C.
20 black and 12 white
D.
8 black and 3 white
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OpenStudy (anonymous):
@Ffrocks3
OpenStudy (ffrocks3):
Im here ;)
OpenStudy (ffrocks3):
your missing the number m8
OpenStudy (ffrocks3):
In a bag containing black and white marbles, ? of the marbles are black.
OpenStudy (anonymous):
oh is 3/8
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OpenStudy (ffrocks3):
kk :)
OpenStudy (anonymous):
what does "m8" mean?
OpenStudy (ffrocks3):
Mate
OpenStudy (anonymous):
oh
TheSmartOne (thesmartone):
so if 3/8 marbles are black that means out of a total of 8 marbles then 3 are black.
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TheSmartOne (thesmartone):
And you would just subtract 8-3 to get how many white marbles there are.
OpenStudy (anonymous):
4
TheSmartOne (thesmartone):
Are you sure the number is 3/8 ?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
so is a a b or c or d?
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TheSmartOne (thesmartone):
oh I get it now lol
OpenStudy (anonymous):
ok
TheSmartOne (thesmartone):
So the ratio of black to white marbles is 3 to 5
So now you have to see if any of the answer choices have the same ratio
TheSmartOne (thesmartone):
for example A is 3 to 8
so that is not correct.
OpenStudy (anonymous):
true
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TheSmartOne (thesmartone):
And for example C is
20 to 12
if we simplify that we get
5 to 3
so that is wrong also
TheSmartOne (thesmartone):
So what is it now? @PlanSlam @~
OpenStudy (anonymous):
b,d
OpenStudy (anonymous):
oh i mean b
OpenStudy (anonymous):
righty?
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TheSmartOne (thesmartone):
there can only be one answer -_-
OpenStudy (anonymous):
i know i said B. XD
TheSmartOne (thesmartone):
It is B. lol
OpenStudy (anonymous):
Right? @TheSmartOne
TheSmartOne (thesmartone):
I said it was right...
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