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33 votes
33 votes
Find the 8th term of the arithmetic sequence.
a1 = 20, d = 5

User Belvi Nosakhare
by
2.5k points

1 Answer

12 votes
12 votes

Answer:

55

Explanation:

arithmetic sequence equation:
u_n=a+(n-1)d

Therefore,
u_n=20+5(n-1)

So the 8th term is when n = 8:
u_n=20+5(8-1)=55

User Airah
by
3.7k points