1. algebra

    Could someone check my work; 1. Generate the first five terms in the sequence using the explicit formula. yn = –5n – 5 –30, –25, –20, –15, –10 30, 25, 20, 15, 10 –10, –15, –20, –25, –30(my answer) 10, 15, 20, 25, 30 2. What is the

    asked by lee on February 3, 2013
  2. Mathematics

    If the sixth term of an A.P is 37 and the sum of the first sixth term is 147.find the first term and the sum of the first 15 terms

    asked by Olajumoke on October 15, 2018
  3. math

    what are the similarities and differences between an arithmetic sequence and a linear equation? ok i know that arithmetic sequence is a sequence of real numbers for which each term is the previous term plus a constant (called the common difference). For

    asked by Claudia on October 19, 2008
  4. Math

    The sixth term of an A.P. is 5 times the first term and the eleventh term exceeds twice the fifth term by 3 . Find the 8th term ?

    asked by Shivam on May 26, 2015
  5. maths

    The 10th term of an arithmetic sequence is 42 more than the 7th term.If the 1st term is -14,find the second term of the sequence

    asked by lucy on July 2, 2020
  6. Algebra ll

    Help please, I don't understand how to do this... Give an example of an arithmetic sequence that is found in the real world. Find the common difference and write a recursive and iterative rule for the sequence. Use one of the rules to find another term of

    asked by Me and I on March 19, 2014
  7. math

    1)Find the sixth term of the geometric sequence for which a1=5 and r=3 A)1215 B)3645 C)9375 D)23 I chose A 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3... A)aN=-12(1/3)n-1 B)aN=12(-1/3)n-1 C)aN=-12(-1/3)-n+1 D)aN=-12(-1/3)n-1 I

    asked by Jon on December 12, 2007
  8. Math

    The sixth term of an arithmetic sequence is 20.6 and the 9th term is 30.2. Find the 20th term and find the nth term.

    asked by Anonymous on May 13, 2015
  9. Math

    1. Find the 12th term of the arithmetic sequence 2, 6, 10, … . 2. Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3. 3. In the sequence 2, 6, 10, … , what term has a value of 106?

    asked by Annika on June 15, 2014
  10. Precalculus

    1. In an arithmetic sequence, the fifth term, u5, is greater than the first term, u1. The difference between these terms is 36. a) find the common difference 9? The tenth term of the sequence is double the seventh term . b) find u1 2.5? 2. Consider the

    asked by Anonymous on May 5, 2014
  11. Maths

    The sixth term of GP is 16 and the third term is 2.Find the first term and common ratio. 6th term =16 3rd term=2 So ar^5=16 and ar^2=2, then divide. So r^3=8, and r^3 =2^3. Therefore r =2 and a=1/2

    asked by Vin Mwale on December 3, 2015
  12. algebra

    find the sixth term of the sequence a(n)=6+(n-1)(-2) please explain

    asked by nani on December 20, 2017
  13. math

    the third term of a geometric sequence is t3= -75 and the sixth term is t6= 9375. determine the first term and the common ratio

    asked by liza on January 4, 2011
  14. maths

    the third term of a geometric sequence is 6 and the sixth term is 3 over 32. Determine the first terms and the general term Tn?

    asked by bahle on January 23, 2014
  15. Math

    1. What is the tenth term of the geometric sequence whose first term (a1) is 16 and the common ratio (r) is –½? 2. Given the terms a10 = 3 / 512 and a15 = 3 / 16384 of a geometric sequence, find the exact value of the first term of the sequence.

    asked by Jade on June 18, 2014
  16. Math ( Can You check my Work?)

    1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 = -5 and an = an-1 - 3 for n ≥ 2 9. a1 = -6 and an = -2an-1 for n ≥ 2 10.a1 = 4 and an = 3an-1 + 2 for n ≥ 2 11. Find a8

    asked by Tony on August 1, 2012
  17. math

    A particular geometric sequence has strictly decreasing terms. After the first term, each successive term is calculated by multiplying the previous term by m/7. If the first term of the sequence is positive, how many possible integer values are there for

    asked by Chris Phill on August 14, 2019
  18. hi

    What is the sixth term of the arithmetic sequence if the 10th term is 33 and the 15th term is 53.

    asked by Anonymous on December 9, 2012
  19. math30

    Sequences 1)A sequence has a first term of 24 and every other term is one half of the previous term. a)Write the first four terms of the sequence. b)Find a recursive formula that defines this sequence. c)Find an explicit formula that defines this sequence.

    asked by alejandro on August 8, 2012
  20. Mathematics arithmetic sequence

    The sum of second and sixth terms of an arithmetic sequence is 4. The third term is 24 more than eleventh term. So determine the first three terms of the sequence.

    asked by Mirriam on January 18, 2015
  21. Sequence

    In a GP the 3rd term is equal to four times the first term and the sixth term is equal to three times the fourth term plus 32. determine the sequence.

    asked by KAdila on October 25, 2016
  22. Pre-Calculus-check answers

    Find the sixth term in the geometric sequence: sqrt3y^3, -3y^5, 3sqrt3y^7 Answer: -27y^13 2) Find three geometric means between -sqrt2 and -4sqrt2. Answer: -2, 2sqrt2, -4 Thanks

    asked by Lucy on September 13, 2008
  23. Math

    The fourth term of an arithmetic sequence is 18 and the sixth term is 28. Give the first 3 terms

    asked by Loisa on June 17, 2018
  24. Algebra

    What is the first term of an arithmetic sequence with a common difference of 5 and a sixth term of 40 ?

    asked by Jasmine on January 20, 2011
  25. Math

    An arithmetic sequence has a first term of 0 and a 10th term of 15. If 10 is an output of the sequence, which term number is it? Show and explain how you know you have the correct answer.

    asked by Candy on February 17, 2017
  26. Urgent math

    Please help me solve this problem?!?! Find the first six terms and the sixth partial sum of the sequence whose nth term is an = 5n2 − n. a1 = a2 = a3 = a4 = a5 = a6 = S6 =

    asked by Briane Mendez on August 12, 2015
  27. Algebra ASAP

    pls pls help out A geometric sequence begins 36, 9, 9/4, 9/16, 9/64, . . . . (a) Find the common ratio r for this sequence. r = (b) Find a formula for the nth term an of the sequence. an = (c) Find the tenth term of the sequence. a10 =

    asked by hey on August 14, 2015
  28. math

    what is the sixth term in this sequence 83,77,71,65

    asked by isabel on August 19, 2010
  29. Math

    1. Find the common ratio and 9th term of the sequence 6, -3, 3/2, -3/4, ..... 2. Find the 7th term of the sequence: 2, 6, 18, 54, ..... 3. Find the 11th term of the sequence 1, -1/2, 1/4, -1/8, .....

    asked by Brianna on October 8, 2014
  30. arithmetic sequence

    the 40th term of an arithmetic sequence is equal to the sum of the 20th and 31st term. if the common difference of the sequence is-10. find the first term.

    asked by hoho on August 4, 2015
  31. math

    The second and sixth terms of an arithmetic sequence is 2:5 and their sum is 28. Find the sum of the first 10th term.

    asked by Hitome Muramasa on August 4, 2016
  32. Math

    The forth term of an A.P is four times the first term. The sixth term is sixty, find the sum of 30 terms, common difference, and the first term.

    asked by Franklin on January 28, 2020
  33. Algebra

    True or False 1. – 5, – 5, – 5, – 5, – 5, … is an arithmetic sequence. 2. In an arithmetic sequence, it is possible that the 13th term is equal to its 53rd term. 3. In an arithmetic sequence, the common difference is computed by subtracting the

    asked by Ruby on September 9, 2014
  34. Math

    Find the 10th term of a nonconstant arithmetic sequence whose 1st term is 3 with the 1st, 4th, and 13th term forming a geometric sequence. I've tried doing it differently everytime, but I always come to a dead end..

    asked by Anon on March 14, 2015
  35. algebra1

    Which of the following functions represents a geometric sequence? Why? Answer Choices The function f(x)=x7 represents a geometric sequence because each term is raised to the seventh power to make it greater. The function f(x)=7x represents a geometric

    asked by miyah on October 9, 2017
  36. MATH

    In an arithmetic sequence, the first term is 100 and the sixth term is 85. Find the common difference. Then, find the 50th term of the sequence. Do I use the formula an=a1+(n-1)d? If so, what would my "n" by in the equation?

    asked by lYDIA on January 16, 2011
  37. Maths

    The third term of a sequence is 2(2/3) and the sixth term is 9. Find the first six terms when the sequence is; (a) arithmetic (b) geometric

    asked by Shane on June 17, 2013
  38. Math

    The fifth term of an eponential sequence is 4375 and the second term is 35. Find the third , sixth term and sum of the of the first five term

    asked by Yunusah Amen on March 26, 2019
  39. Quick Math Help

    Find the tenth term of the sequence: -6,1,8... Is it 57? For the sequence:2,4,8,16 the value of s4 is____. Is it 8? Find the 7th term of the sequence: 1,2,4,... Is it 64? Which term of this sequence is 275? 5,10,15,... Is it 1357? Find the 7thterm of an.

    asked by Anonymous on October 11, 2016
  40. Quick math help

    Find the tenth term of the sequence: -6,1,8... Is it 57? For the sequence:2,4,8,16 the value of s4 is____. Is it 8? Find the 7th term of the sequence: 1,2,4,... Is it 64? Which term of this sequence is 275? 5,10,15,... Is it 1357? Find the 7thterm of an.

    asked by Anonymous on October 12, 2016
  41. Quick math help

    Find the tenth term of the sequence: -6,1,8... Is it 57? For the sequence:2,4,8,16 the value of s4 is____. Is it 8? Find the 7th term of the sequence: 1,2,4,... Is it 64? Which term of this sequence is 275? 5,10,15,... Is it 1357? Find the 7thterm of an.

    asked by Anonymous on October 10, 2016
  42. Math

    the fifth term of an exponentrial sequence is 4375 and the second term is 35, find the third and the sixth term

    asked by Nero on June 19, 2019
  43. Mathematics

    Deternine the formula of the nth term of the sequence if the sum of the second and sixth terms of an arithmetic sequence is 4.the third term is 24 more than the leventh tern

    asked by Rabelani on January 16, 2015
  44. Algebra 2

    The third and sixth terms of a geometric sequence are -75 and -9375 respectively. Find the first term, the common ratio, and an explicit rule for the nth term.

    asked by Kennedy on February 19, 2015
  45. mathematics for business

    the third and the sixth term of a G.p are 5 and -40 respectively. find the tenth term of the sequence?

    asked by khadija on December 4, 2015
  46. Math

    1. The fourth and seventh terms of a geometric sequence are 6 and 384, respectively. What is the common ratio and the sixth term of the sequence? 2. The fifth and eight terms of a geometric sequence of real numbers are 7! and 8! respectively. What is the

    asked by Penny on March 13, 2015
  47. geometry

    The third term of a geomatrie sequence is 6 and the sixth term is 3/32.determine the fist three terms and the general term Tn

    asked by Snontia on February 8, 2015
  48. math

    The sum of the second ans the sixth terms of an arithmetic sequence is 4.Thw third term is 24 more than the 11th term. 1Determine the first three terms in the sequence.

    asked by ntwa on January 18, 2016
  49. Math

    3,5,-5... The first term in the sequence of #'s shown above is 3. Each even # term is 2 more than the previous term and each odd # term, after the first, is -1 times the previous term. For example, the second term is 3+2, and the third term is (-1)x5. What

    asked by Mack on May 20, 2007
  50. arithmetic

    the second term of an arithmetic sequence is 15,mand the sixth term is 43. what is the 289th term?

    asked by kendra on November 29, 2011
  51. math

    1. a square has a side of 2 decimeters. a new square is formed by joining the midpoints of the sides. If this procedure is reoeated 6 times, what is the perimetet and area of the seventh square 2. find the sum of those numbers between 15 and 810 which have

    asked by Anonymous on December 8, 2015
  52. Math

    the second and sixth terms of an arithmetic sequence is 4. the third term is 24more than the 11th term. Determine the first three terms of the sequence

    asked by Nomfundo on January 18, 2016
  53. Math

    Can anyone help me with these problems? 1. A square has a side of 2 decimeters. A new square is formed by joining the midpoints of the sides. If this procedure is repeated 6 times, what is the perimeter and area of the seventh square ? 2. Find the sum of

    asked by Anonymous on December 8, 2015
  54. Urgent math

    how do I do this can any body show me how? An arithmetic sequence begins 4, 9, 14, 19, 24, . . . . (a) Find the common difference d for this sequence. d = (b) Find a formula for the nth term an of the sequence. an = (c) Find the 35th term of the sequence.

    asked by Aileen on August 15, 2015
  55. math

    in a certain geometric sequence, the third term is 8 and the sixth term is 125. what is the first term?

    asked by deborah on July 22, 2011
  56. math

    in a certain geometric sequence, the third term is 8 and the sixth term is 125. what is the first term?

    asked by deborah on July 22, 2011
  57. math

    find the rule for the Nth term of the arithmetic sequence. 11/2, 25/6, 17/6, 3/2, 1/6..... If you change the denomators to 6, you should notice the numerators follow the sequence: 33,25,17,9,1,...which is an arithmetic sequence with a common difference of

    asked by brandon on April 1, 2007
  58. Algebra

    I am so lost on these problems. Write a geometric sequence that starts with 3 and has a common ratio of 5. What is the 23rd term in the sequence. Write an arithmetic sequence that has a common difference of 4 and the eighth term is 13. What is the first

    asked by Randy on June 17, 2016
  59. Math

    The fourth term of arithmetic sequence is 18 and the sixth term is 28. Give the next three terms.

    asked by JC on June 12, 2018
  60. algebra 2 help please/check

    The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the seriesy differ from the 6th term? Explain. Part C: If the nth term in this

    asked by jenny on May 20, 2012
  61. algebra 2

    The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the seriesy differ from the 6th term? Explain. Part C: If the nth term in this

    asked by jenny on May 19, 2012
  62. Algebra II

    The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the series differ from the 6th term? Explain. Part C: If the nth term in this

    asked by Danny on May 27, 2012
  63. mathematics

    evng .my teacher gave me this as a homework but i dnt undertand. 1.In a GP the 3rd term is equal to four times the first term and the sixth term is equal to three times the fourth term plus 32. Determine the sequence.

    asked by patricia on May 3, 2016
  64. Algebra

    One question left for the night and i am stumped ... I need to find the sixth term of a geometric sequence in which a-sub-one = -7 and r = 3 .... Thanks in advance for you help!

    asked by MaryJo on December 12, 2012
  65. Algebra

    One question left for the night and i am stumped ... I need to find the sixth term of a geometric sequence in which a-sub-one = -7 and r = 3 .... Thanks in advance for you help!

    asked by MaryJo on December 12, 2012
  66. Math

    A sequence is formed by adding together the corresponding terms of a geometric sequence and and an arithmetic sequence.The common ratio of the geometric sequence is 2 and the common difference of the arithmetic sequence is 2.The first term of the new

    asked by Piwo on April 12, 2012
  67. algerbra 9th grade

    The first term in an arithmetic sequence is -1. The fourth term in the sequence is -4. The tenth term in the sequence is -10. Which function can be used to find the nth term of the arithmetic sequence?

    asked by khole on November 2, 2018
  68. someone explain to me!

    the third term of a geometric sequence is t3= -75 and the sixth term is t6=9375. determine the first term and the common ratio. how do I do this question I am tying really hard but I still don't comprehend this question! We have t3 = -75 and t6 = 9375. A

    asked by Andrew on October 18, 2006
  69. AP and GP

    1) Given the terms a35 = 1238, a70 = 1483 of an AP. Find the exact value of the term a105 a sequence, and sum of sequence. 2) Given the term a3 = 99 and a5 = 891 of GP. Find the exact value of the term a7 of the sequence and the sum of sequence.

    asked by Newbie on February 27, 2011
  70. Mathematics : Arithmetic Sequence

    The 5th term and the 8th term of an arithmetic sequence are 18 and 27 respctively. a)Find the 1st term and the common difference of the arithmetic sequence. b)Find the general term of the arithmetic sequence.

    asked by Charmian on September 7, 2008
  71. Math

    The sixth term of an appointment is 37 and the sum of the first sixth term is147 find the first term,find the sum of the first fifteen terms.

    asked by Gloria on August 24, 2017
  72. mathematics

    6. In a GP the 3rd term is equal to four times the first term and the sixth term is equal to three times the fourth term plus 32. Determine the sequence.

    asked by patricia on May 3, 2016
  73. Math - Arithmetic & Geometric

    1) Given the terms a35 = 1238 and a70 = 1483 of an Arithmetic. Find the exact value of the term a105 a sequence and sum of sequence. 2) Given a3 = 99 and a5 = 891 of a Geometric. Find the exact value of the term a7 of the sequence and the sum of sequence.

    asked by Student555 on February 28, 2011
  74. math-algebra

    14. The last term of an arithmetic sequence is 207, the common difference is 3, and the number of terms is 14. What is the first term of the sequence?: A. 165 B. 171 C. 249 D. 168 Please explain. thanks

    asked by Anonymous on September 26, 2007
  75. math

    The third and seventh terms of an arithmetic sequence are 10 and 20. 1) What is the value of the 1st term? 2) What is the value of the 9th term? 3) What is the equation to find the nth term in the sequence? HELP!! PLEASE!!

    asked by Brittany on February 2, 2011
  76. Math *URGENT

    Please give the answers and solutions for each. 1.If the second term is 2 and the seventh term of a geometric sequence is 64, find the 12th term. 2. Which term if the geometric sequence 18,54,162,486,... is 3,188,646? 3. Determine the geometric mean of 8

    asked by Aliza on December 20, 2012
  77. algebra

    the seventh term of a arithmetic sequence is 72 and the tenth term of the sequence is 90. if the sequence is defined by a formula f(n), then find f(2). How would you do this?

    asked by danielle on January 11, 2016
  78. maths

    in an AP the third term is equal to five times the sixth term. the second term is lesser by 3 than twice the fourth term. find the term of AP

    asked by vagdevi on October 17, 2015
  79. Math

    The following are the first four terms of a sequence: a, a (1/b),a(1/b(1/b),a(1/b)(1/b)(1/b) where a is a positive integer. Is the eight term positive or negative? explain So the sequence could be seen as {a/b^(n-1): n=1,2,3...} I hope you can see that the

    asked by dgibson on September 3, 2006
  80. algebra(check)

    1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1

    asked by Marissa on August 24, 2007
  81. algebra

    1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1

    asked by Marissa on August 26, 2007
  82. algebra

    1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1

    asked by Marissa on August 24, 2007
  83. algebra

    1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3,... a.an=-12(1/3)n-1 b.an=12(-1/3)n-1 c.an=-12(-1/3)-n+1 d.an=-12(-1/3)n-1

    asked by Marissa on August 23, 2007
  84. math

    The sum of second term and fourth term of G.P is 30 and difference between sixth term and second term is 90,how to find third term

    asked by suma on August 3, 2013
  85. math

    A sequence is generated in which each term is 9 more than the previous term, If the eighth term is 13, what is the fourth term? a. -23 b. -14 c. 40 d. 49 e. 58 please answer and explain

    asked by Thomas on January 19, 2014
  86. math ( sequence )

    A sequence is generated in which each term is 5 less than the previous term. If the twentieth term is -32, what is the fifteenth term ? a. -57 b. -12 c. -7 d. 2 e. 7 please answer and explain

    asked by Thomas on January 23, 2014
  87. math

    1. Use the given arithmetic sequence to answer the following problems. Arithmetic sequence: 10, 15, 20, 25, 30, …. a. Use the formula to find the 75th Term of the given Arithmetic Sequence I. Formula: II. Work: b. Use the formula to find the nth Term of

    asked by angell on March 20, 2009
  88. mathematics

    1.1 the third term of an arithmetic sequence is 8 and the 15 term is 44 . Calculate: 1.1 the common difference and first term. 1.2 the sum of the first 50 terms. 1.2 1;4;7;10.... Is an arithmetic sequence .find: 1.2.1 the 30 term.

    asked by tankiso on May 19, 2015
  89. pre-calculus urgent

    The first term of an arithmetic sequence is 6, and the tenth term is 2. (a) Find the common difference d. d = Find the 100th term of the sequence. a100 = (b) Find the partial sum of the first ten terms. S10 = how do i do this, there's an example I tried

    asked by Alex on August 15, 2015
  90. maths

    given 1,0.5,4,o.25,7,0.125,10 assume this pattern continues consistently 1.write down the 33th term in this sequence 2.determine the sum of the first 24 terms in this sequence.give the answer to five decimal place 2.1.in a geometric sequence the fourth

    asked by memory on February 15, 2015
  91. Calculus

    Write a formuls for the general term(nth term) of the arithmetic sequence. Do not use a recursion formula. Then use the formula for A to the n to find the indicated term of the sequence find a11: 12, 10, 8,...

    asked by Kelly on December 9, 2007
  92. math

    find the fifth term of geometric sequence a=-6 r=2 This website explains how to do it: http://www.mathguide.com/lessons/SequenceGeometric.html However, you must designate which term in the sequence is what you call "a". Is it the f1rst term, a1? If so, a2

    asked by john on September 24, 2006
  93. math

    Each term in a sequence of numbers, except for the 1st term, is 2 less than the square root of the previous term.If the 3rd term of this sequence is 1, what is the first term?

    asked by peter on July 17, 2014
  94. Precalculus

    The 8th term in an arithmetic sequence is 5, and the sum of the first 10 terms is 20. Find the common difference and the first term of the sequence. Alright so in an arithmetic squence the difference d between any two successive numbers is constant. So if

    asked by Trudy on January 20, 2007
  95. Sj

    Mathematics......Under number patterns-Geometric series If a question goes.determine the expression for the nth term of the following sequence if the a) 4th term is 24 and the 7th term is 192 in a geometric sequence.what formula do i use here?because i

    asked by Mahlogonolo on July 16, 2015
  96. Math for Educators

    The first difference of a sequence is 8, 12, 16, 20,... The sum of the first two terms of the original sequence is 14. Find the first three terms of the original sequence. The first term of the original sequence is? 4 What is the second term of the

    asked by Carol on June 4, 2013
  97. further maths

    find the sum of the first eight term of a linear sequence whose first term is 6 and whose last term is 46 the sum of the first ten term of a linear sequence is 60 and the sum of the first fifteen term is 165 find the 18 term of the sequence

    asked by victory on March 11, 2017
  98. math

    The 3rd term in an arithmetic sequence is 12, the 7th term is 24, a) How many common differences are there between a_3 and a_7? b) What is the common difference of the sequence? c) What is the first term in the sequence? a_1 d) What is the expression for

    asked by edwin on May 21, 2014
  99. Math

    The fourth term of an arithmetic sequence is less than the fifth term by 3. The seventh term is three times the fifth term. Find the common difference and the first term

    asked by Wawa on December 17, 2017
  100. Arithmetic Sequence

    Given the third term of an arithmetic sequence less than the fourth term by three. The seventh term is two times the fifth term. Find the common difference and the first term.

    asked by Nina on September 30, 2012