Question

Identify the 25th term of the arithmetic sequence 2, 1 and 3 over 5, 1 and 1 over 5 …

Answer 1

We are given the arithmetic series 2, 1 3/5, 1 1/5.. In this case, the arithmetic difference is -2/5 by taking the difference of 2 and 1 3/5 and 1 3/5 and 1/5. The general formula of arithmetic sequence is an = a1 + d*(n-1). Substituting, an = 2 -2/5*(n-1). a25 hence is equal to a25 = 2-2/5*(25-1) = -38/5

Answer 2

Answer:

-7 3/5 is your CORRECT answer! Hope this helps!!

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