SOLUTION: please help me find the 100th term of 25, 10, -5, -20,.......

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Question 93605This question is from textbook algebra and trigonometry
: please help me find the 100th term of 25, 10, -5, -20,....... This question is from textbook algebra and trigonometry

Answer by psbhowmick(878) About Me  (Show Source):
You can put this solution on YOUR website!
This is an AP.
The n-th term of an AP with first term 'a' and common difference 'd' is
t%5Bn%5D=a%2B%28n-1%29d

Here, a = 25 and d = -15.
So the 100-th term is
t%5B100%5D=25-%28100-1%2915
t%5B100%5D=25-1500%2B15
t%5B100%5D=-1460