The formula for the terms of this sequence is, 1.5n2 - 2.5n + 1
The 5th term = (1.5 x 25) - (2.5 x 5) + 1 = 37.5 - 12.5 + 1 = 26
The 6th term is thus, (1.5 x 36) - (2.5 x 6) + 1 = 54 - 15 + 1 = 40
It is: 26+7 = 33
15 - it has 3 numbers either side of it.
It is: (15+37)/2 = 26
26
26
It is: 26+7 = 33
unknown number is a 60a = 104 15a = 26 15a/15 = 26/15 1a = 26/15 check: 60 x 26/15 = 4 x 26/1 = 104
15/100 x = 495 → x = 495 × 100/15 → 26/100 x = 495 × 100/15 × 26/100 = 495 × 26/15 = 858
31. Each number is derived from the sequence minus 6 then plus 17. Cobblestoneplaza.com
15 - it has 3 numbers either side of it.
It is: (15+37)/2 = 26
26
26
"26 letters in the alphabet, Each one shapes words we never forget. From A to Z, in endless array, Each number stands out in its unique way."
2626 is.
15/32
A prime number can only be divided by itself and 1. 4 can be divided by 2 26 can be divided by 2 15 can be divided by 3