SOLUTION: The 12th term of an arithmetic sequence is 35. The 7th term is four times the 2nd term. Find the nth term of the sequence?
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Question 841586: The 12th term of an arithmetic sequence is 35. The 7th term is four times the 2nd term. Find the nth term of the sequence?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a+12d=35,
a+7d=4*(a+2d)
a=-1 d=3
-1+36=35
-1+7*3=20
4*(-1+2*3)
4*5=20
t=-1+3*n
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