Answered a question or shared learning resources in the last month.

Active Contributor

Experienced

Valuable

Ranked in the top ten for our most popular subjects.

Top 10

If we take 37 as the 0th term, then the nth term can be found as 37-4n, as each following number is smaller by a common difference of 4.
For example: 4th term (21) = 37-4*4 = 37-16 = 21.

If we consider 37 to be the 1st term, we need to make a small change to our formula: 37-4(n-1)
Now: 5th term (21) = 37-4*(5-1) = 37-16 = 21.

Maths

Possible formuna for the nth term of a sequence of 37 33 29 25 21

Learn about algebraic notation, operations and formulae - all the basics you'll need! Your GCSE Maths series covering the whole syllabus.

GCSE

GCSE Maths - Algebra A

Learn how to solve linear and quadratic equations both algebraically and graphically! Also includes linear inequalities and all you need to know about sequences. Your GCSE Maths series covering the whole syllabus.

GCSE Maths - Algebra C

First chapter of GCSE Maths series covering the whole syllabus. Includes operations on numbers, factors and multiples, powers, standard form, fractions, decimals and more!

GCSE Maths - Numbers

Become confident when it comes to all possible graphs, including circles! Your GCSE Maths series covering the whole syllabus.

GCSE Maths - Algebra B

Learn about ratios, scale factor, proportion, percentage and much more! Your GCSE series covering the whole syllabus.

GCSE Maths - Ratios

Learn all you need to know about geometry basics, angles and polygons! Your GCSE series covering the whole syllabus.

Paja Kruzikova

Profile

Q&A

Video

Paja Kruzikova