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Anonymous A.

asked • 09/16/21

Find the 27th term of the arithmetic sequence 15, 17.25, 19.5, 21.75,...

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Raymond B. answered • 09/19/21

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common difference = a2 - a2 = 17.25 - 15 = 2.5

the nth term = an = a1 + (n-1)d

a27 = 15 + (26)(2.5) = 15 + 65 = 80 = the 27th term

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