A national education conference has 4500 female attendees and 3000 male attendees.

Of the 4500 female attendees, 2/5 are elementary educators.
Of the 3000 male attendees, 2/5 are elementary educators.
3/4 of the elementary educators have attended the conference before.
How many elementary educators have attended the conference before?

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A national education conference has 4500 female attendees and 3000 male attendees Of the 4500 female attendees 25 are elementary educators Of the 3000 male atte class=