Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Jeremy is playing a board game and rolls two number cubes. Let A = {the sum of the number cubes is even} and let B = {the sum of the number cubes is divisible by 3}. List the outcomes in A ∩ B.

OpenStudy (anonymous):

@amistre64

OpenStudy (amistre64):

write out your sets in roster form ... in other words, list their elements

OpenStudy (anonymous):

{6, 12} {3, 6, 9, 12} {2, 4, 6, 8, 10, 12} {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

OpenStudy (amistre64):

may help to write a universal set

OpenStudy (amistre64):

we can rule out 2 sets, can you tell me why?

OpenStudy (anonymous):

?

OpenStudy (amistre64):

actually 3 can be rules out ...

OpenStudy (amistre64):

youll have to explain your confusion better than that, i simply cant read minds that well

OpenStudy (anonymous):

i dont know what ^ means like the U but downwards

OpenStudy (amistre64):

from the information that is stated in the problem, what part or parts of it do you now understand? ok, lets call it an "n" which is a good representation of it. "n" means AND it is asking for what elements are the same in each defined set

OpenStudy (amistre64):

the solution will contain values that are even; and divisible by 3 .. nothing else

OpenStudy (anonymous):

ok

OpenStudy (amistre64):

so which option has only even numbers, which are divisible by 3?

OpenStudy (anonymous):

(3,6,9,12)?

OpenStudy (amistre64):

no, but a good guess. 3 and 9 are not even numbers. 6 and 12 are

OpenStudy (anonymous):

oh yea so its 6 and 12 thats it

OpenStudy (amistre64):

yep, 6,12 would be my pick

OpenStudy (anonymous):

can u help me in my last question?

OpenStudy (amistre64):

not at the moment ... but good luck

OpenStudy (anonymous):

alright

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!