SOLUTION: how many terms must be added in an arithmetic sequence whose first term is 11 and whose common difference is 3 to obtain a sum of 1092

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Question 854063: how many terms must be added in an arithmetic sequence whose first term is 11 and whose common difference is 3 to obtain a sum of 1092
Answer by richwmiller(17219) About Me  (Show Source):
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S = ½(2a + d(n-1))n
1092 = ½(2*11 + 3(n-1))n
n = 24