Write the rule for the nth term given 1/20,2/30,3/40,4/50,...

Nasir Sullivan 2022-09-23 Answered
Write the rule for the nth term given 1 20 , 2 30 , 3 40 , 4 50 , ...
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Answers (1)

Adelaide Barr
Answered 2022-09-24 Author has 9 answers
When trying to find the rule for the nth term, it is useful to write the numbers for n, ie 1,2,3,4,... above or below the terms of the sequence.
Then compare the numbers in the term with n and look for a pattern.
In this sequence:
1 20 , 2 30 , 3 40 , 4 50 , ... numerator the same as n denominator same as 10 x (n+1)
1, 2, 3, 4
So write that in terms of n
T n = n 10 ( n + 1 ) or n 10 n + 10
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