20
270. The sequence could be t(n) = 11.5n3 - 75n2 - 159.5n - 90 (for n = 1, 2, 3, ...)
13 18 16 21 19 24 22 27 25 ... . This series consists of adding 5 to the first number and subtracting 2 from the next number, repeating the sequence in that order.
The pattern is +2 /2 +3 /3 +4 /4, and the next term would be +5, or 8.
The next number in the sequence is 48.
612
8 and then 1.6
If the last number is 1/3 (it should be), the next number is 5 and 1/3
21
The next is 3.
270. The sequence could be t(n) = 11.5n3 - 75n2 - 159.5n - 90 (for n = 1, 2, 3, ...)
39. The rule here is starting with the number 9, add (-6 + sequence number * 6). 9 + (-6) = 3 3 + 0 = 3 3 + 6 = 9 9 + 12 = 21 21 + 18 = 39 39 + 24 = 63
13 18 16 21 19 24 22 27 25 ... . This series consists of adding 5 to the first number and subtracting 2 from the next number, repeating the sequence in that order.
To identify the next number in the sequence 40, 42, 21, 24, 8, 12, 3, we can observe a pattern in the pairs: 40 to 42 (add 2) 42 to 21 (divide by 2) 21 to 24 (add 3) 24 to 8 (divide by 3) 8 to 12 (add 4) 12 to 3 (divide by 4) Following this pattern, the next operation should be to add 5 to 3, resulting in 8. Thus, the next number is 8.
The pattern is +2 /2 +3 /3 +4 /4, and the next term would be +5, or 8.
The next number in the sequence is 48.
612
68