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April 18, 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: 23,277

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 ...
Thursday, April 17, 2008 at 12:26pm by Anonymous

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.
Sunday, October 16, 2011 at 5:08pm by Anonymous

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.
Saturday, January 15, 2011 at 6:45am by Malek

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
Friday, February 7, 2014 at 8:31am by kruthi

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
Friday, November 4, 2011 at 6:17am 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?
Monday, September 17, 2012 at 2:49am 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.
Tuesday, May 1, 2012 at 11:25pm by Jennifer

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
Sunday, February 21, 2010 at 4:42am by Anonymous

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 ...
Sunday, September 25, 2011 at 7:34am by Amir khan

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?
Sunday, January 27, 2013 at 1:17pm by Bethold

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...
Sunday, February 3, 2013 at 4:35pm by Lucas

Mathematics
The 3rd and 8th term of an arithmetic progression A.P are -9 and 26.what their common difference nd first term?
Thursday, February 7, 2013 at 11:51pm by Oyediran

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 ...
Saturday, January 14, 2012 at 3:35pm by Max

arithmetic
given that the first term of an Ap is 7 and its 10th term is twice the second term.calculate the 19th term, the sum of the 28 term and the common different between the 9th and the 6th term..
Sunday, October 16, 2011 at 5:43pm 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.
Saturday, September 17, 2011 at 7:17am by charles

arithmetic
The nth term of an arithmetic progression is defined by n = a + (n-1)d where, n = the nth term a = the first term d = the common difference Therefore, 58 = 10 + (13 - 1)d 48 = 12d d = 4
Sunday, February 6, 2011 at 12:03am by helper

arithmetic
What is the sum to 15 terms of an arithmetic progression whose 8th term is 4?
Monday, July 4, 2011 at 5:01am by vinay

Maths
If 9th term of an arithmetic progression is 0, prove that its 29th term is double the 19th term.
Thursday, January 9, 2014 at 6:55am by Anonymous

maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
Wednesday, June 12, 2013 at 4:16am by thabang

maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
Wednesday, June 12, 2013 at 4:18am by thabang

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.
Monday, September 2, 2013 at 6:03am by Leda

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.
Sunday, September 7, 2008 at 6:10am by Charmian

arithmetic progression
the 9th term of an AP is 52 while the 12th term is 70. find the sum of it's 20th term?
Tuesday, August 6, 2013 at 8:19am by oladepo

10th grade Mathematics
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.
Sunday, September 7, 2008 at 5:59am by Charmian

arithmetic
Find the sum of the 25th term to 50th term of the arithmetic progression 28,23,18, ...
Sunday, January 24, 2010 at 12:10am by Eryea

math
In an arithmetic series the 3rd term is twice the 8th term. Find the sum of the first 25 terms.
Thursday, March 6, 2014 at 9:40am by simamkele libalele

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
Thursday, December 1, 2011 at 8:37am 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
Thursday, December 1, 2011 at 9:10am 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.
Thursday, December 1, 2011 at 11:22am by Watermelon

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.
Sunday, October 16, 2011 at 5:43pm by Anonymous

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
Friday, November 5, 2010 at 1:43pm by Ali

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.
Wednesday, January 29, 2014 at 6:38pm by Miracle

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
Friday, March 30, 2012 at 3:45pm by wale

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.
Tuesday, April 12, 2011 at 4:46pm by Bless

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.
Monday, December 3, 2012 at 6:16am by simranpreet

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
Sunday, October 23, 2011 at 1:06pm by Anonymous

math1
The nth term of an arithmetic progression derives from L = a + (n - 1)d where L = the nth term a = the first term d = the comon difference Therefore, L = 11 + (50 - 1)4 = ?
Tuesday, April 27, 2010 at 3:22pm by tchrwill

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 .
Tuesday, May 11, 2010 at 9:05pm by Victoria

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.
Tuesday, September 25, 2012 at 10:25am by Chrissey

mathematics
MATHEMATICS PLEASE HELP ME!!! In an arithmetic series the 3rd term is twice the 8th term find the first 25 terms
Thursday, March 6, 2014 at 10:43am by brad johnson

Math (Geometric Progression)
5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? Note: The phrase "form an arithmetic progression" ...
Saturday, June 22, 2013 at 3:08am by Shin

geometry
or term(1) = 4 term(2) = 6 term(3) = term(1) + term(2) - 1 = 9 term(4) = term(2) + term(3) - 2 = 13 term(5) = term(3) + term(4) - 3 = 18 ... term(n) + term(n-2) + term(n-1) - (n-2) this is called a recursive formula, or term(n) = n(n+1)/2 + 3 Including bobpursley's pattern , ...
Thursday, September 30, 2010 at 8:19am by Reiny

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.
Tuesday, March 8, 2011 at 7:57am by rusya

pre-algebra
In this case: 1 is first term 3 is second term 5 is third term 7 is fourth term etc 1999 is thousandth term because that in your progression n=1000
Sunday, August 14, 2011 at 12:45pm by Anonymous

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
Friday, November 8, 2013 at 4:44am by dammy

MATH
The nth term of an arithmetic progression is defined by N = a + (n-1)d where N = the nth term, a = the first term and d = the common difference. Therefore, 85 = 100 + (6 - 1)d -15 = 5d making d = -3 The 50th term then becomes N(50) = 85 + (50 - 1)(-3) = ?
Sunday, January 16, 2011 at 12:06am by tchrwill

Math
5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? Note: The phase "form an arithmetic progression" ...
Saturday, May 11, 2013 at 3:56am by Shin

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.
Sunday, May 12, 2013 at 5:31pm by Rebekah

Maths
Find 8 terms of the arithmetic progression if the second term is 2 and the sixth term is 5
Monday, March 5, 2012 at 11:25pm by Great

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.
Wednesday, November 30, 2011 at 11:25pm by Watermelon

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.
Sunday, September 30, 2012 at 5:31am by Nina

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
Tuesday, January 31, 2012 at 1:16pm by Daniel

Math
Given a geometric progression: 0.05, 0.2, 0.8, ... Find the sum from the 5th term to the 8th term?
Friday, January 18, 2013 at 2:49am by azmeerahim

Math
A sequence is called an arithmetic progression of the rst order if the di erences of the successive terms are constant. It is called an arith- metic progression of the second order if the di erences of the successive terms form an arithmetic progression of the rst order. In ...
Friday, May 11, 2012 at 6:47am by Bhupendra

Math
1st term = x 2nd term = x-.5 3rd term = x - 2(.5) .... 10th term = x - 9(.5) = x - .45 ... 14th term = x - 13(.5) = x - 6.5 t th term = x - (t-1)(.5) I assume you are studying sequences and series. Do you recognize the arithmetic sequence pattern ?
Tuesday, February 19, 2013 at 6:35am by Reiny

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.
Thursday, November 24, 2011 at 3:48am by Watermelon

arithmetic
An arithmetic progression (A.P) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. If the initial term of an arithmetic progression is a1 and the common difference of successive members is d, then the nth term of...
Monday, February 27, 2012 at 3:55am by Bosnian

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..
Tuesday, November 8, 2011 at 5:16pm by victor

math-algebra
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 The last, or nth, term of an arithmetic progression is defined by L = a + (n...
Wednesday, September 26, 2007 at 1:16am by tchrwill

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
Thursday, March 17, 2011 at 12:35pm by Taylor White

math
find the 4th term of an arithmetic sequence whose first term is -8 and whose 9th term is 32.
Thursday, January 30, 2014 at 7:20pm by breauna

arithmetic progression
9th term = 52 ---> a + 8d = 52 12th term = 70 --> a + 11d = 70 subtract them 3d = 18 d = 6 then a+48 = 52 a = 4 20th term = a + 19d = 4 + 114 = 118
Tuesday, August 6, 2013 at 8:19am by Reiny

math
the first term of an arthmetic progression is 1 and its last term is 28, find the sum of the progression if their number is 10
Monday, November 1, 2010 at 5:28pm by sonia

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?
Tuesday, February 7, 2012 at 9:17am by linda

arithmetic
nth term expressions whose 8th term is 74
Thursday, September 17, 2009 at 10:41am by katie

arithmetic
find the seventh term of an arithmetic progression 5,7,11,15
Friday, July 1, 2011 at 5:04pm by Anonymous

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
Tuesday, February 4, 2014 at 3:40pm by kemi

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...
Friday, March 30, 2012 at 12:23pm by Anonymous

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.
Saturday, November 26, 2011 at 9:20am by Sequence and series

Maths
1) remember that t(n) = a+(n-1)d t(8) = a+7d t(4) = a+3d it said: the 8th term is twice the 4th term ---> a+7d = 2(a+3d), simplify this then it said: the 20th term is 40 ---> a+19d = 40 Solve these two equations. 2) YOu should know that S(n) = n/2[2a + (n-1)d] so you ...
Thursday, April 17, 2008 at 12:26pm by Reiny

arithmetic
I think each term is the previous term minus 2. So it's an arithmetic sequence where a=3 and r= -2. So the nth term (starting with n=0) of the sequnce is 3 - 2n
Thursday, February 4, 2010 at 9:50am by Candace

Math - Arithmetic Sequences
The third term of an arithmetic sequence is 15, and the fifth term is 37. What is the first term?
Saturday, January 14, 2012 at 3:35pm by Anonymous

arithmetic
the second term of an arithmetic sequence is 15,mand the sixth term is 43. what is the 289th term?
Tuesday, November 29, 2011 at 4:09pm by kendra

arithmetic
An arithmetic n geometric sequence have the same first term 2.with the 2nd term x. the sum of the 3rd term of the AS is equal to the 3rd term of the GS. Give the first 3 terms of both sequences.
Sunday, February 26, 2012 at 5:32pm by simphiwe

geometry
The 3rd term of harmonic progression is 15 and the 9th term is 6. Find the 11th term
Monday, June 2, 2008 at 11:24pm by Anonymous

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, ...
Saturday, January 20, 2007 at 11:14pm by Trudy

arithmetic
What is the sum of a 10–term arithmetic sequence where the first term is 3 and the last term is 75?
Saturday, August 6, 2011 at 2:49pm by soka

Core mathematics
4th term is 37 ---> a + 3d = 37 6th term is 12 more than 4th term ---> a+5d = a+3d + 12 2d = 12 d = 6 then in a+3d = 37 a + 18 = 37 a = 19 first term is 19 7th term = a+6d = 127 check: 19 25 31 37 43 49 is 4th term 37 ? yes is 6th term 12 more than 4th? yes
Saturday, November 26, 2011 at 9:20am by Reiny

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
Monday, February 3, 2014 at 10:03am by Anonymous

Maths
The 14th term of an Ap is double the 4th term.find the 10th term if the 2nd term is 8
Wednesday, October 2, 2013 at 12:19pm by Hacker

arithmetic sequence
If it is an arithmetic sequence, given by: A(n)=A(0)+nI where A(n) is the nth term, A(0) is a constant, and I is a constant (increment), then A(10)=126 and A(7)=21 Subtract: A(10)-A(7)=126-21=105 A(0)+10I-(A(0)+7I)=105 3I=105 I=35 A(0)=126-10*35=-224 Therefore the nth term of ...
Wednesday, August 25, 2010 at 1:11am by MathMate

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.
Thursday, December 8, 2011 at 8:13am by Habooba

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.
Wednesday, February 15, 2012 at 6:32pm by Magana

math
Express the individual elements of each term in terms of i. For the 3rd term, i=3, then 8/3!=2*³/3! = 2³/i! Verify with another term: for i=4, 2^i/i!=16/4! = 4th term, OK Check the first term (which does not have the same form), i=1 2^1/1! = 2/1 = 2 OK So the sum ...
Thursday, March 17, 2011 at 12:13am by MathMate

math
term 2 = term 1 + 5 term 3 = term 1 + 2*5 term 4 = term 1 + 3*5 term 5 = term 1 + 4*5 term 50 = term 1 + 49*5 = 1 + 245 = 246
Saturday, November 27, 2010 at 7:46pm by Damon

ap
An arithmetic progression (A.P) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. If the initial term of an arithmetic progression is a1 and the common difference of successive members is d, then the nth term of...
Thursday, March 1, 2012 at 11:43pm by Bosnian

Math - Arithmetic Sequences
"The sum of the 4th and the 14th term of an arithmetic sequence equals 22" ----> a+3d + a+13d = 22 2a + 16d = 22 a + 8d = 11 (#1) "The 9th term is 4 larger than the 4th term" ---> a+8d - (a+3d) = 4 5d = 4 d = 4/5 a = 11-8d a = 11 - 8(4/5) = 23/5 check: t4 = 23/5 + 3(4/5...
Saturday, January 14, 2012 at 3:35pm by Reiny

Algebra 2 math
An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant. If the initial term of an arithmetic progression is a1 and the common difference of successive members is d, then the...
Monday, September 19, 2011 at 12:36am by Anonymous

math
4th term is 3 times 1st term ----> a+3d = 3a 2a = 3d a = 3d/2 7th term exceeds the 3rd term by 1 a+6d > a+2d by 1 a+6d = a+2d + 1 4d = 1 d = 1/4 then a= (3/2)(1/4) = 3/8 10th term = a+9d = 3/8 + 9(1/4) = 21/8 check: a=3/8, d=1/4 or 2/8 3/8, 5/8, 7/8, 9/8, 1/8, 13/8, 15/8...
Thursday, December 8, 2011 at 8:13am by Reiny

arithmetic
Assuming you are working with arithmetic sequences, term(4) = a+3d = 20 term(7) = a+6d = 32 subtract the two equations: 3d = 12 d = 4 sub back into either top equation to find a term(n) = a + (n-1)d
Tuesday, October 13, 2009 at 7:08am by Reiny

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
Wednesday, December 11, 2013 at 7:25pm by Jamiu

algebra
third term is 14 and ninth term is -1 14 - 2.5 = 11.5 > 4th term 11.5 - 2.5 = 9 > 5th term 9 - 2.5 = 6.5 > 6th term 6.5 - 2.5 = 4 > 7th term 4 - 2.5 = 1.5 > 8th term 1.5 - 2.5 = -1 > 9th term The terms are decreasing by 2.5 > (-2.5) To go from one term to ...
Tuesday, December 17, 2013 at 10:34am by Chelle

Math
The sum of the first seventeen terms of an arithmetic series is 493 The third term is 11. Find the first term and the seventeenth term. The n-th term is 3*n + 2
Thursday, December 21, 2006 at 3:51pm by Blonde Glamour

Maths
A geometric progression has a third term of 20 band sum to infinity which is three times the first term. find the first term.
Saturday, September 10, 2011 at 5:25pm by Tejiri

maths
There are 6 terms in an A.P. 6th term is 3 times the second term and 4th term is 4 times the first term. if the 5th term is 15 find the terms
Tuesday, February 25, 2014 at 5:32am by jennifer

math
take a look at the first few of the Fibonacci numbers 1 1 2 3 --- term 4 5 8 13 21 --- term 8 34 55 89 144 -- term 12 ... Every term where the term number is divisible by 4, or, every 4th term will be divisible by 3 so if we have 1001 terms then term 1000 will be divisible by ...
Sunday, May 12, 2013 at 8:24am by Reiny

math
1) If the number 1,1/3,1/9, are terms of Geometric progression. Find its common ratio 2) If the second term of Geometric progression is equal to 3, and the 5th term is equal to 81/8. Find the 7th term. 3)If x,y,3 is a Geometric progression. Find the value of x and y 4) Insert ...
Saturday, March 12, 2011 at 1:52pm by bogoss

correction - arithmetic
I used the 32 as if it were the 2nd terms, should have been the 4th Here is the correct version Thus a = 1 so term(1) = 8 8 = 1(1^2) + b(1) + c ---> b+c = 7 term(4) = 32 32 = 1(4^2) + b(4) + c ---> 4b + c = 16 subtract them: 3b = 9 b = 3 then c = 7-3 = 4 term(n) = n^2 + ...
Monday, March 21, 2011 at 6:02am by Reiny

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
Wednesday, October 12, 2011 at 5:06am 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
Saturday, November 6, 2010 at 10:16am by De-Graft

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