SOLUTION: The first term in the sequence is 400. Every subsequent term is 20 less than half of the immediately preceding term . What is the fourth term in the sequence?

SOLUTION: The first term in the sequence is 400. Every subsequent term is 20 less than half of the immediately preceding term . What is the fourth term in the sequence?

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Question 876874: The first term in the sequence is 400. Every subsequent term is 20 less than half of the immediately preceding term . What is the fourth term in the sequence?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
An=(A(n-1))/2-20
A1=400
A2=400/2-20
A2=180
A3=180/2-20
A3=70
A4=70/2-20
A4=15
400, 180, 70, 15

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