0,7,14,21 What is the next number? What is the 1000th term? | MathCelebrity Forum

0,7,14,21 What is the next number? What is the 1000th term?

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0,7,14,21
What is the next number?
What is the 1000th term?

We're adding 7 to the last term, so we get a next term of:
21 + 7 = 28

For our nth term, we notice a pattern for the nth term of:
7n - 7

  • n = 1 --> 7(1) - 7 = 0
  • n = 2 --> 7(2) - 7 = 7
  • n = 3 --> 7(3) - 7 = 14
For n = 1000, we have:
7(1000) - 7 = 7000 - 7 = 6993
 
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