Answer: 3/8 of the class went to the evening session.
Explanation:
So it says on Sunday 3/4 of an 8th grade class went to see the movie.But we do not know the real population of the 8th grade class. But is says that out of the 3/4 of the students that went to the movie have of them went in the afternoon so we will multiply 1/2 by 3/4 to find out how many people went to the afternoon session.
3/4 * 1/2 = 3/8 So we know that 3/8 of the 3/4 of the class went in the afternoon so we will now subtract 3/8 from 3/4 to find out what fraction went in the evening.
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To think about it if half of the 3/4 of the class went in the afternoon then another have will go in the evening.
I think it's cold rolled steel because this type of steel as closer dimensional tolerances and wider range of surface finishes. But I'm not completely certain this is what you're looking for.