Find the indicated term of the arithmetic sequence.
-Given an arithmetic sequence with d = 6 and a5 = 27 , find a20.
A)119
B)59
C)54
D)117

Name: Find the indicated term of the arithmetic sequence. -Given an arithmetic sequence with d = 6 and a5 = 27 , find a20. A)119 B)59 C)54 D)117
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Question

Quizplus · Accepted Answer

To find a20, use the formula for the nth term of an arithmetic sequence: an = a1 + (n-1)d. First, find a1 using a5 = a1 + 4d = 27. Solving gives a1 = 3. Then, a20 = a1 + 19d = 3 + 19(6) = 117.

Find the Indicated Term of the Arithmetic Sequence