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2015-06-12T08:24:42+08:00

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I assume you are talking about sets. If I am asked about a set that consists of even numbers between 30 and 49, I would not include 30 and 49 because it says "between." But, you can ask you're teacher about that. So, for me, I would think it is:      30 < x < 49 where x is an even number.

1.) Determine the even numbers greater than 30 and lesser than 49, start by the nearest even number closest to 30 which is 32, (then + 2), 34, 36 ,38, 40, 42, 44, 46, 48. 

2.) Pick a name for the set. Add an "=" sign. Add the opening brace. Put the elements with their commas. Finally, add the closing brace.
 
A
A =
A = {
A = {32, 34, 36. 38, 40, 42, 44, 46 ,48
A = {32, 34, 36. 38, 40, 42, 44, 46 ,48}

Final Answer:
                        A = {32, 34, 36. 38, 40, 42, 44, 46 ,48}

       
4 3 4
Even numbers between 30-49 32,34,36,38,40,42,44,46,48