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OpenStudy (anonymous):
an auditorium is 1/2 full. after 25 people in the audience left, the auditorium hall is 3/8 full. What is the seating capacity of the hall?
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OpenStudy (dumbcow):
(1/2)A -25 = (3/8)A (1/2)A -(3/8)A = 25 (4/8)A - (3/8)A = 25 (1/8)A = 25 A = 25*8 = 200
OpenStudy (anonymous):
same solution with dumbcow (lol. what a name)
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