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43 votes
43 votes
Find the nth term: 9,20,31,42

User Trevor Johns
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2 Answers

16 votes
16 votes

Answer: The nth term of this sequence is a n= 11n-2

Step-by-step explanation:

Sequence : 9, 20, 31, 42

Difference : +11, +11, +11

The formula for nth term of an arithmetic progression is a n= d.n+a1-d

The formula for nth term of an arithmetic progression is d= 11 and a1=9

so.

a n=d.n+a 1-d

a n=11.n+9-11

a n=11n-2

Hope it helps :)

User JonnDough
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2.4k points
21 votes
21 votes

Answer:

the answer is 99 because the difference between the numbers is 11 and if you do 9 ×11 you get 99

User Torez
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