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August 20, 2014

Search: 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

Number of results: 74,080

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, 1+3+5...that are required to make a sum ...
April 17, 2008 by Anonymous

Arithmetic Progression
In an AP the 6th term is half the 4th term and the 3rd term is 15. a. Find the fist term and the common difference. b. How many times are needed to give a sum that is less than 65?
September 17, 2012 by Math

Utech
The 9th term of an Arithmetic Progression is 8 and the 4th term is 20. Find the first term and the common difference.
May 1, 2012 by Jennifer

Math
The fifth term of an arithmetic progression is three times the second term,and the third term is 10.a)What is the first term,b)the common difference and c)the 15th term?
January 27, 2013 by Bethold

math
the fourth term of an arithmetic progression is equal to 3 times the first term and the seventh term exceeds twice the third term by 1 find the first term and the common differrence
February 7, 2014 by kruthi

Math
the sum of the 4th term and the 5th term is 12.if the 4th term of the progression is 8, find the common ratio and the 1st term of the progression.
January 15, 2011 by Malek

Mathematics
The 3rd and 8th term of an arithmetic progression A.P are -9 and 26.what their common difference nd first term?
February 7, 2013 by Oyediran

arithmetic
THE SUM OF THE 2ND AND 5TH TERMS OF AN A.P IS 42. IF THE DIFFERENCE BETWEEN THE 6TH AND 3RD TERM IS 12, FIND THE: COMMON DIFFERENCE, 1ST TERM, 20TH TERM.
November 26, 2010 by JOSHUA BAME

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
November 7, 2011 by Katie

maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
June 12, 2013 by thabang

maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
June 12, 2013 by thabang

arithmetic progression
the 9th term of an AP is 52 while the 12th term is 70. find the sum of it's 20th term?
August 6, 2013 by oladepo

arithmetic
The 8th term of an A P is 5times the third term while the 7th term is 9 greater than the 4th term.what are the first five term
November 4, 2011 by Anonymous

Maths
1..The first 2 terms of a geometric progression are the same as the first two terms of an arithmetic progression.The first term is 12 and is greater than the second term.The sum of the first 3 terms od the arithmetic progression is 4/3 less than the sum of the first 3 terms of...
February 3, 2013 by Lucas

math
in an ap the difference is between the 8th and 4th term is 20 and the 8th term is one and the half times the fourth term what is the common difference
November 8, 2013 by dammy

arithmetic progression
given that the first term of an Ap is 7 and its 10th term is twice the second term calculate the 19th term.
October 16, 2011 by Anonymous

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.
September 7, 2008 by Charmian

arithmetic
In an arithmetic progression the sum of the first 10 terms is 50 and the 5th is three times the second term. Find the fisrt term and the common difference.
April 12, 2011 by Bless

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.
September 30, 2012 by Nina

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 dont know what n is.
May 12, 2013 by Rebekah

math
in an arithmetic progression the 50th term is equal to 3, and the sum of the first 8th is equal to 23. find the first term and the common difference
November 5, 2010 by Ali

maths
1) The first term of arithmetic progression is -20 and the sum of it's term is 250. find it's last term if the number of it's terms is 10 2) Find the fifth term from the arithmetic progression -12, -9, -6 hence find the sum of it's first fifty terms. 3) The sum of the first ...
September 25, 2011 by Amir khan

AP calculus
The sixth term of an Arithmetic Progression is 23 and the sum of the six terms is 78. Find the first term and the common difference.
November 24, 2011 by Watermelon

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 the first term is x, ...
January 20, 2007 by Trudy

Math Algebra
The first term of a geometric progression is more than the third term by 12. The fourth term is more than the second term by 4. Find: i.the first term a and the common ratio r. ii. the n'th term of the progression.
September 2, 2013 by Leda

arithmetic
an arithmetic progression has 20 terms. the sum of all the even terms is 350. given that the first term is 5, find the common difference and the eleventh term.
March 8, 2011 by rusya

PRE CALC
The 20th term of an arithmetic sequence is 27 and the first term is -11. What is the common difference??
April 2, 2014 by Aly

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 -8 so term(n) = -8n...
April 1, 2007 by brandon

mercy land
the 2nd, 3rd, and 4th term of an arithemetic progression are x-2, 5 and x+2 respectively, calculate the value of x and hence find the 20th term..
November 8, 2011 by victor

arithmetic
Each term of a progression is determined by adding 0.5 to the preceding term. the sum of the first 25 terms of the progression equals the square of the 25th term. calculate the possible value(s) of the first term
February 21, 2010 by Anonymous

arithmetic
first term and larst term of a geometric progression is 42.if the forth term is greater than the second term by 168, find the first term.the forth term.
September 17, 2011 by charles

AP Calculus
The 9th term of an arithmetic progression is 4+5p and the sum of the four terms of the progression is 7p-10, where p is a constant. Given that common difference of the progression is 5, find the value of p.
November 30, 2011 by Watermelon

math
The 8th term of ap is 5time the 3rd term, while the 7th term is greater than the 4th term, write the first 5 term of the ap
March 30, 2012 by wale

math
An arithmetic series has third term 11. The ninth term is 5 times the second term. Find the common difference.
November 19, 2009 by sdgsd

GP Caluculus
The third term of a geometric progression is 16. The sum of the third term and the fouth term is 8. Find (a)the first term and the common ration of the progression (b)the sum of infinity of the progression
December 1, 2011 by Watermelon

GP Caluculus
The third term of a geometric progression is 16. The sum of the third term and the fouth term is 8. Find (a)the first term and the common ration of the progression (b)the sum of infinity of the progression
December 1, 2011 by Watermelon

GP Caluculus
The third term of a geometric progression is 16. The sum of the third term and the fourth term is 8.Find (a)the first term and the common ratio of the progression. (b)the sum of infinity of the progression.
December 1, 2011 by Watermelon

math
The 9th term of an AP is 8 and the 4th term is 20. Find the first term and the common difference.
April 6, 2013 by lindsay

Math
The nth term of an A.P. Is 3 times the 5th term.(a)find the relationship between a and d.(b)prove that the 8th term is 5times the 4th term.
January 29, 2014 by Miracle

Math - Arithmetic Sequences
The sum of the 4th and the 14th term of an arithmetic sequence equals 22. The 9th term is 4 larger than the 4th term. Calculate the first term of the sequence. I've been trying to solve this for like an hour but I just can't figure out how to do it! I'd really appreciate your ...
January 14, 2012 by Max

Utech
The 6th term of an A.P is twice the third and the first term is 3. Find the common difference and the 10th term.
May 1, 2012 by Jennifer

arthmetic
in an arthmetic progression or series,the 13th term is 27 and the 7th iterm is 3 times the 2nd term ,find first term the common difference the sum of rhe squence
October 12, 2011 by Anonymous

Geometric progression
The second term of a geometric progression is 12 more than the first term given that the common the ratio is half of the first term. Find the third term of the Geometric progression
October 23, 2011 by Anonymous

maths
The thirteenth term of an arithmetic progrssion os 27 and the seventh term is three timees the second term. tind the first term,common difference and the sum of the first ten terms
November 6, 2010 by De-Graft

maths
The thirteenth term of an arithmetic progrssion os 27 and the seventh term is three timees the second term. tind the first term,common difference and the sum of the first ten terms
November 6, 2010 by De-Graft

Sequence
Find the common difference and a formula formula for the nth term of the arithmetic sequence; 6, 2, -2, -6, -10,...a sub n = a)6-4n b)6-2n c)10-2n d)10-4n I think it is c but want to check. Ao is 10, then each term subtracts 4n from it....n=1, ... well if 6 is equal to the ...
March 9, 2007 by raven31792

arithmetic
the sum of the 3rd and the 4th term is 44 and the sum of the 10th and the 15th term is 203. what is the sum up to the 20th term?
February 7, 2012 by linda

Math
Name School Team Event 3: Logic and Reasoning (with calculators) 5th/6th grade Math Meet ‘08 For each number pattern, fill in the next five terms. (2 pts. each blank) ANSWER KEY 1st term 2nd term 3rd term 4th term 5th term 6th term 7th term 8th term 9th term 10th term 1) 2) 3...
March 30, 2012 by Anonymous

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 function f(x) = ax^3 -3x...
May 5, 2014 by Anonymous

math
In an arithmetic series the 3rd term is twice the 8th term. Find the sum of the first 25 terms.
March 6, 2014 by simamkele libalele

Math
The fourth term of an arithemetic progression is 13 and the tenth term is 31 find it first tern and it common difference
March 28, 2012 by Wale

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 this arithmetic sequence?
May 21, 2014 by edwin

math
in an AP the 10th term is 54 and 5th term is 4 times the 2nd term . Find the 1st term 'a' and common difference 'd'
February 3, 2014 by jomon

arithmetic
given that the first term of an Ap is 7 and its 10th term is twice the second term. calculate the sum of the 28 term.
October 16, 2011 by Anonymous

math
1) If the sum of the first n terms of a series is Sn where Sn=2n˛-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP the 6th term is half the 4th term and the 3rd ...
April 17, 2008 by Anonymous

Math
1) If the sum of the first n terms of a series is Sn where Sn=2n˛-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP the 6th term is half the 4th term and the 3rd ...
April 17, 2008 by Anonymous

Maths
If 9th term of an arithmetic progression is 0, prove that its 29th term is double the 19th term.
January 9, 2014 by Anonymous

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?
January 16, 2011 by lYDIA

math
the 10th term is 34 of arithmetic series and the sum of the 20th term is 710.what is the 25th term?
January 1, 2013 by Riana

Maths - Arithmetic Progression
The fourth term of an AP is 8 and the sum of the first ten terms is 40. Find the first term and the tenth term.
September 25, 2012 by Chrissey

Mathematics
The 25 term of an Arithmetic Progression is 7 1/2 and the sum of the first 23 terms is 98 1/2. Find the i. 1st term ii. common difference iii. sum of the first 30 terms
December 11, 2013 by Jamiu

arithmetic
For a given arithmetic sequence, the 90th term, is equal to -230 , and the 8th term, is equal to 16 . Find the value of the 31st term .
May 11, 2010 by Victoria

Maths
The 3rd term of an AP is 10 more than the first term while the fifth term is 15 more than the second term.find the sum of the 8th and 15 term of AP.if the 7th term is seven times the first term.
February 15, 2012 by Magana

arithmetic
If the sum is 220 and the first term is 10, find the common difference if the last term is 30
July 29, 2011 by sanjoy

maths
the sum of first 8 terms of an arithmetic progression is 156.the ratio of its 12th term to its 68th term is 1:5.calculate the first term and the fifteenth term. please help this questions please.
December 3, 2012 by simranpreet

math
Marissa plans to cut a wire that is 5 feet 3 inches long. How long should each of the cut pieces be if she wants 7 equal pieces of wire? Find the twenty-second term of an arithmetic sequence if the first term is 4 and the common difference is 10. Find the twenty-second term of...
April 19, 2010 by joe

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 when a1...
August 1, 2012 by Tony

maths
If told that the 3rd term of a GP is 36 and the 8th term is 8748. find the first term and the common ration.
March 6, 2013 by crystal powell

math
The third term of a G.P is 24 and the sum of the first two terms is 288. If all the terms are positive,find a)the first term and the common ratio b)the sum of all the terms from 4th term to the 8th term
February 3, 2014 by Anonymous

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 sequence is 1 and the ...
April 12, 2012 by Piwo

arithmetic
Find the sum of the 25th term to 50th term of the arithmetic progression 28,23,18, ...
January 24, 2010 by Eryea

Core mathematics
The 4th term of an A.P.is 37 and the 6th term is 12 more than the 4th term.find the 1st and the 7th term of the sequence.
November 26, 2011 by Sequence and series

arithmetic
If the first term of an arithmetic sequence is 2 and the 7th term is 3278, what is the common difference?
April 16, 2013 by Anonymous

math
The 4th term of an AP is 3 times its first term and the 7 term exceeds the 3 term by 1.Find the 10 term of an AP.
December 8, 2011 by Habooba

10th grade
The common difference of an arithmetic sequence is 4. The 13th term is 103. Find the general term of the arithmetic sequence.
September 7, 2008 by Charmian

mathematics
MATHEMATICS PLEASE HELP ME!!! In an arithmetic series the 3rd term is twice the 8th term find the first 25 terms
March 6, 2014 by brad johnson

maths
the 1st term of an ap is twice the common difference find in terms of the 5th term of the ap
October 20, 2012 by d 1st term of an ap is twice the common difference find in terms of the 5th term of the a

Maths
Find 8 terms of the arithmetic progression if the second term is 2 and the sixth term is 5
March 5, 2012 by Great

arithmetic
If the first term of an arithmetic sequence is 10 and the 13th term is 58, what is the common difference?
February 6, 2011 by Anonymous

Mathematics
The firts terms a of an A.P is equal to twice the common difference d.Find, in term of d, the 5th term of the A.P.
November 3, 2011 by Yinka

arithmetic
The 9th term of an A.p is 32 while the12th termis70.find the sum of it 20th term
June 12, 2011 by Amidia racheal kamara

Math
Given a geometric progression: 0.05, 0.2, 0.8, ... Find the sum from the 5th term to the 8th term?
January 18, 2013 by azmeerahim

arithmetic
use the geometric mean to find the 7th term in a geometric sequence if the 6th term is 50 and the 8th term is 18
March 17, 2011 by Taylor White

math help!
the 10th term is 34 of arithmetic series and the sum of the 20th term is 710 i.e S20=710.what is the 25th term?
January 1, 2013 by Riana

arithmetic
The sum of the first 10th term of an a.p is 255,the sum of the first 20 term is 1010.find the next 2020 term of the progression
January 31, 2012 by Daniel

Algebra
What is the first term of an arithmetic sequence with a common difference of 5 and a sixth term of 40 ?
January 20, 2011 by Jasmine

math
find the 4th term of an arithmetic sequence whose first term is -8 and whose 9th term is 32.
January 30, 2014 by breauna

math
What is the sum of a 12–term arithmetic sequence where the last term is 13 and the common difference is –10?
April 2, 2011 by matt

Alg 2
What is the sum of a 12-term arithmetic sequence where the last term is 13 and the common difference is -10?
June 20, 2011 by Schuyler

math
What is the common difference of a 43–term arithmetic sequence where the first term is –13 and the sum is 9,374?
April 2, 2011 by matt

maths
Given that the first term of an A.P is 7 and its 10th term is twice its second calculate a)19th term b) sum of 28 term c) different between the 9th and 6th term
February 4, 2014 by kemi

Maths
The 14th term of an Ap is double the 4th term.find the 10th term if the 2nd term is 8
October 2, 2013 by Hacker

arithmetic
determine the A.P whose fourth term is 18 and the difference of the ninth term from the fifteenth term is 30.
February 27, 2012 by shabna

Community technical college
Given that 1st term of an A.P is 7 and it's 10th term is twice the second term,calculate the (a) 19th term (b)sum of 28 terms (c) difference between 9th and 6th terms
February 3, 2013 by Benjamin

arithmetic
the sum of irst and the fourthterm of a linear squence is10 and the sum of its thired and seventh term is 20.find the common difference and the first term
October 9, 2011 by Anonymous

arithmetic
What is the sum to 15 terms of an arithmetic progression whose 8th term is 4?
July 4, 2011 by vinay

arithmetic
The initial term of an arithmetic sequence is 5. The eleventh term is 125. what is the common difference of the arithmetic sequence?
October 25, 2011 by Jane

intro cal
the first 3 term of a geometric progression are k-4, 2k-4, 4k+4. what is the value of k? can someone help please! in any geometric progression any term divided by its previous term gives you the common ratio, so .... (2k-4)/(k-4) = (4k+4)/(2k-4) cross-multiply and proceed. I ...
May 18, 2007 by Emma

Algebra 2
The first term in an arithmetic series is 7 and the 17th is 49. What is the 20th term?
May 4, 2011 by Abbie

algebra
For the sequence an=6+5*(n-1), its first term is__??__ ; its second term is__??__ ; its third term is__??__ ; its fourth term is__??__ ; its fifth term is__??_ ; its common difference d= __??__ .
November 16, 2011 by lulu

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