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Beth bought 20 tickets to a movie, where adult tickets cost $8.00 and senior citizen tickets cost $4.00. She spent a total of $140. Which system of equations will determine the number of adult tickets, a, and the number of senior citizen tickets, s, Beth purchased?

a + s = 20

8a + 4s = 140


a + s = 140

8a + 4s = 20



a + s = 20

a + s = 140



a + s = 20

4a + 8s = 140

1 Answer

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