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Q: What next 3 -4 -11 -18 -25?

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It is: 18+7 = 25

It is: 3-7n and so the next number is -39

32.it goes up by 7 each time

11 is to 13 and 18 is to 25

Subtract 2 from the sequence and the answer becomes obvious: 1, 4, 9, 16, 25,...,N2 Now, add the 2 back in: 3, 6, 11, 18, 27,...,(N2+2)

The next term is 45 because the numbers are increasing by increments of 3 5 7 9 and then 11

The nth term is 7n-3 and so the next term will be 39

42 is the next number in this sequence. This number sequence is adding the next prime number to the last number. So 1 + 2 = 3. Then 3 + 3 = 6, 6 + 5 = 11, 11 + 7 = 18, 18 + 11 = 29. The next prime number after 11 is 13, so 29 + 13 = 42. The next numbers would be 59 (42+17), 78 (59+19), and 101 (78+23)

It is: 25-7n

7n - 3

1+3=4 3+4=7 4+7=11 so 7+11=18

18. 1+3=4 3+4=7 4+7=11 7+11=18

1, 3, 4, 7, 11, 18, 29, 47

Un = 25 - 7n

The factors of 11 are: 1, 11 The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 25 are: 1, 5, 25 The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

This is called a Fibonacci Sequence where the two initial (seed) values are 1 and 3, thereafter every term is the sum of the two previous terms. 4 = 3 + 1 7 = 4 + 3 11 = 7 + 4 18 = 11 + 7 29 = 18 + 11 So the next number would be the sum of, 29 + 18 = 47

(11/18) - (1/6) = (11/18) - (3/18) = (11-3)/18 = 8/18 = 4/9

47, you add the two previous numbers together: 3+4=7 4+7=11 7+11=18 18+29=47.

42 as you have to add the next prime number onto the previous value.

It is: 47 because 18+29 = 47

1 3 4 7 11 18 29 and 47 add last two terms to get next term. number 4 was missing in your series

1 3 4 7 11 18 29 47 76 123 199 .......and so on Add together the previous two terms to find the next term i.e 1+3=4, 3+4=7, 4+7=11

3/5 = 15/25 + 11/25 = 26/25 or 1 and 1/25

It is -4-11+18 = 3 Think of it as 18 -11 =7 and 7-4 =3

20-23