In the 8

In the A. P. 36, 39, 42, …, which term is 276?

Correct result:

n =  81

Solution:

a1=36 a2=39  d=a2−a1=39−36=3  x=276  x=a1+(n−1)⋅ d  n=(x−a1)/d+1=(276−36)/3+1=81

Try another example


We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you!






Showing 0 comments:
avatar




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

Next similar math problems:

  • Insert 4
    arithmet_seq_1 Insert 3 arithmetic means between 3 and 63.
  • Sequence
    sunflower Between numbers 1 and 53 insert n members of the arithmetic sequence that its sum is 702.
  • Sequence 3
    75 Write the first 5 members of an arithmetic sequence: a4=-35, a11=-105.
  • Sequence
    a_sequence Write the first 7 members of an arithmetic sequence: a1=-3, d=6.
  • Sequence 2
    seq2 Write the first 5 members of an arithmetic sequence a11=-14, d=-1
  • Andrew
    mince_1 Andrew had an offer for a job starting at 100000 per year and guaranteeing her to raise of 10000 a year for the next years. Find her salary for the 4th year.
  • Seats
    divadlo_2 Seats in the sport hall are organized so that each subsequent row has five more seats. First has 10 seats. How many seats are: a) in the eighth row b) in the eighteenth row
  • AS sequence
    AP In an arithmetic sequence is given the difference d = -3 and a71 = 455. a) Determine the value of a62 b) Determine the sum of 71 members.
  • What is 9
    seq What is the 15th term; x1=1.5, d=4.5?
  • Negative difference
    arithmet_seq Find four arithmetic progression members between 7 and -6.
  • Insert 3
    arithmet_seq Insert five arithmetic progression members between -7 and 3/2.
  • 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
  • Third member
    seq_6 Determine the third member of the AP if a4=93, d=7.5.
  • What are
    seq What are the four terms between 4 and 19?
  • Find the 19
    numbers_3 Find the 1st term of the GP ___, -6, 18, -54.
  • 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?
  • Difference AP 4
    sequence_geo_1 Calculate the difference of the AP if a1 = 0.5, a2 + a3 = -1.1