How to find the answer to an arithmetic sequence - SAT Math

How to find the answer to an arithmetic sequence - SAT Math

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日期:2025-05-04
Explanation: Let d represent the common difference between consecutive terms. Let a n denote the nth term in the sequence. In order to get from the tenth term to the twentieth term in the sequence, we must add d ten times. Thus a 20 = a 10 + 10d 20 = 40 +...看更多