Further maths

posted by Zainab

The 8th term of a linear sequence is 18th and the 12th term is 26th .find the first term,common difference and the 20th term

  1. Reiny

    Your question does not make sense
    "The 8th term of a linear sequence is 18th"
    = gobbledegoop!
    In any arithmetic (linear) sequence, the terms either increase or decrease. A term can never repeat itself
    if you meant:
    The 8th term of a linear sequence is 18 , we can do something

    Correct your question, and we'll go from there.

  2. Reiny

    a+7d = 18
    a+11d = 26
    subtract them:
    4d = 8
    d = 2

    in a+7d = 18
    2+7d = 18

    carry on

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Maths

    1) In the arithmetic progression, the 8th term is twice the 4th term and the 20th term is 40. Find the common difference and the sum of the terms from the 8th to the 20th term inclusive. 2) Find the least number of terms of the AP, …
  2. MATH

    Find the value of A + B if the A is the first term and B is the common difference of the sequence whose 4th term is 3 and 20th term is 35
  3. Precalc

    Find a formula for the nth term if... a)the 8th term is 8 and the 20th term is 44 b) the 8th term is 4 and the 18th term is -96 thanks!! I am just confused how you do this if you don't know what n is.
  4. Mathematics

    The 8th term of a linear sequence is 18th and 12th term is 26.find the first term and the common difference and 2th term
  5. ahisco

    In an A.P the difference between the 8th term and 4th term is 20 and the 8th term is 1half timesthe fourth term. what is the common difference and the first term of the sequence
  6. maths

    The 12th term of exceeds the 3rd term by 36 of an a.p If it's 16th term is 64 find first term and common difference
  7. Mathematics

    If the 8th term of an AP is 36 and the 16th term is 68. Find: a) the first term b) the common difference c) The 20th term
  8. Further maths

    The first term of a linear sequence is 3 and the 8 term is 31. Find the common difference
  9. FURTHER MATHS

    The 8th term of a linear sequence is 18 and 12th term is 26.find the first term,common difference and 20th term
  10. Math

    The 16th term of an AP is three times the 5th term. If the 12th term is 20 more than the 7th term, find the first term and the common difference.

More Similar Questions