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Mathematics 21 Online
OpenStudy (anonymous):

Which of the following is a subset of {1, 4, 7, 10, 13, 16, 19, 22}?

OpenStudy (anonymous):

{2, 5, 8} {7,13,22} {10,13,17} {13,15,19}

OpenStudy (mrnood):

If all the numbers in the group of 3 are present in the original group of 8 numbers then it is a subset. Only one of the groups of three is correct

OpenStudy (anonymous):

Can you give me a step by step on how to do this?

OpenStudy (mrnood):

I just did Ask yourself: are 2, 5 & 8 ALL present in {1, 4, 7, 10, 13, 16, 19, 22}? Then do it for the other three possible answers....

OpenStudy (anonymous):

2 , 5 ,8 are not present. So is that the answer?

OpenStudy (mrnood):

So answer {2,5,8} is NOT a subset Do it for the other 3 answers

OpenStudy (anonymous):

So.. 7 , 13 ,22 is also NOT a subset?

OpenStudy (mrnood):

Ask yourself: are 7, 13 & 22 ALL present in {1, 4, 7, 10, 13, 16, 19, 22}?

OpenStudy (anonymous):

Yes they are.

OpenStudy (mrnood):

If all the numbers in the group of 3 are present in the original group of 8 numbers then it is a subset.

OpenStudy (anonymous):

So... The answer is?

OpenStudy (mrnood):

You have above ALL the necessary information and examples and hints and clues and whatever to decide the answer for yourself

OpenStudy (anonymous):

Sorry you just are not explaining it well

OpenStudy (mrnood):

I am soooooooooo sorry - would you like me to give you the answer? (I am not going to btw)

OpenStudy (anonymous):

No the answer is 7 , 13 , 22 . My MOM told me how to do it better than you.

OpenStudy (mrnood):

Moms know more than you might EVER believe!

OpenStudy (anonymous):

Lol MrNood all you had to say was ''Which answer has the same numbers in the qustion?''

OpenStudy (mrnood):

But you are studying the theory of sets. It doesn't just apply to numbers - you need to understand what a subset is 'in general' not just for this question. Good luck

OpenStudy (anonymous):

Ahhh i see. But thanks for trying you best to help!

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