An auditorium has 50 rows of seats. The first row contains 30 seats. As you move...
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An auditorium has 50 rows of seats. The first row contains 30 seats. As you move to the rear of the auditorium, each row has 7 more seats than the previous row. How many seats are in the row 31? How many seats are in the auditorium? An auditorium has 50 rows of seats. The first row contains 30 seats. As you move to the rear of the auditorium, each row has 7 more seats than the previous row. How many seats are in the row 31? How many seats are in the auditorium?
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We can solve this problem by using the formula for the sum of an arithmetic sequence S n22a n1d wher... View the full answer
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