8,11,14,17,20 What is the next number? What is the 150th term? | MathCelebrity Forum

8,11,14,17,20 What is the next number? What is the 150th term?

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8,11,14,17,20
What is the next number?
What is the 150th term?

We're adding by 3 to the last number in the sequence, so we have the next number as:
20 + 3 = 23

For the nth term, we have a formula of this:
3n + 5
3(1) + 5 = 8
3(2) + 5 = 11
3(3) + 5 = 14

With n = 150, we have:
3(150) + 5 = 450 + 5 = 455
 
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