SOLUTION: How do i find the 15th term of the series 3,7,11,15...
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Question 636692: How do i find the 15th term of the series 3,7,11,15...
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
nth term:
an = a1 + (n-1)*d
an = 3 + (n-1)*4
an = 3 + 4n - 4
an = 4n - 1
-------------------
15th term
an = 4n - 1
a15 = 4(15) - 1
a15 = 60 - 1
a15 = 59
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