15th term of AP

What is the 15th term; x1=1.5, d=4.5?

Correct answer:

x15 =  64.5

Step-by-step explanation:

x1=1.5 d=4.5 n=15  x15=x1+(n1) d=1.5+(151) 4.5=64.5



Did you find an error or inaccuracy? Feel free to write us. Thank you!






avatar




You need to know the following knowledge to solve this word math problem:

Related math problems and questions:

  • Arithmetic progression 2
    seq_sum The 3rd term of an Arithmetic progression is ten more than the first term, while the fifth term is 15 more than the second term. Find the sum of the 8th and 15th terms of the Arithmetic progression if the 7th term is seven times the first term.
  • HP - harmonic progression 2
    seq Compute the 16th term of the HP if the 6th and 11th term of the harmonic progression are 10 and 18 respectively.
  • What is 10
    numbers2 What is the 5th term, if the 8th term is 80 and common ratio r =1/2?
  • Missing term 2
    seq What is the missing term for the Geometric Progression (GP) 3, 15, 75,__, 1875?
  • HP - harmonic progression
    sequence_geo Determine the 8th term of the harmonic progression 2, 4/3, 1,…
  • Common difference
    apollo The 4th term of an arithmetic progression is 6. If the sum of the 8th and 9th terms is -72, find the common difference.
  • In the 8
    seq In the A. P. 36, 39, 42, …, which term is 276?
  • If the 3
    sequence_geo If the 6th term of a GP is 4 and the 10th is 4/81, find common ratio r.
  • Geometric progressiob
    eq2 If the sum of four consective terms of geometric progression is 80 and arithmetic mean of second and fourth term is 30 then find terms?
  • Find the 19
    numbers Find the 1st term of the GP ___, -6, 18, -54.
  • 10th term
    seq_sum What is the 10th term of the Arithmetic Progression if x1=4 and d=5?
  • Missing term
    seq What is the missing term in the sequence? _____, 13, 30, and 47?
  • Find d 2
    lines Find d in an A. P. whose 5th term is 18 and 39th term is 120.
  • Arithmetic progression
    postupnost1 In some AP applies: 5a2 + 7a5 = 90 s3 = 12 Find the first member a =? and difference d = ?
  • AP members
    arithmet_seq What is the value of x2, x3, x4, x5…of the terms (of arithmetic progression) when x1 = 8 and x6 = 20?
  • Negative difference
    arithmet_seq Find four arithmetic progression members between 7 and -6.
  • Difference AP
    delta Calculate the difference of arithmetic progression if the sum of its first 19 members Sn = 8075 and the first member is a1 = 20