Answer:
450 students and 300 adults
Step-by-step explanation:
how many adults (a) and how many students (s) attended.
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Quantity:: a + s = 750 tickets
Value:::: 2.5a+s = 1200 dollars
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Subtract and solve for "a":
1.5a = 450
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a = 300 (# of adults attending)
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s = 750-300 = 450 (# of students attending)