Which rule can you use to find the nth term of an arithmetic sequence in which the common difference is 5 and a12 = 63?

asked Jun 27, 2017 19.5k views

2 votes

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7 votes

Answer:

3+5n

Explanation:

Ayal Gelles answered Jun 27, 2017

6.7k points

3 votes

tn = a + (n-1)d

when n = 12, tn = 63

63 = a + (12-1)*5

a = 63 - 55 =8

tn or an
= 8 + (n-1) 5

= 3 + 5n

Hope this helps

Ddcruver answered Jul 1, 2017

6.9k points

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