# Arithmetic

**Math**

The 6th term of an arithmetic sequence is 3 times the 2nd term. Prove that the 10th term is twice the 5th term. tn=t1+(n-1)d

**MATH HELP**

Match the sequence (term) with the correct type of sequence (definition). Match Term Definition 128, 32, 8, 2, ... A) Geometric, common ratio is 0.25 1, 3, 9, 27, ... B) Arithmetic, common difference is 5 5, 10, 15, 20, ... C) Geometric, common ratio is 3 20, 17, 14, 11, ... D...

**Algebra II**

An indoor auditorium has a small side section that models an arithmetic sequence where the third row has 5 seats and the tenth row has 26 seats. If that section has 14 rows, how many seats would be in the last row?

**math**

An indoor auditorium has a small side section that models an arithmetic sequence where the third row has 5 seats and the tenth row has 26 seats. If that section has 14 rows, how many seats would be in the last row?

**Counting and Probability**

The fifth term of an arithmetic sequence is 9 and the 32nd term is -84. What is the 23rd term?

**Math**

The third, fifth and seventeenth terms of an arithmetic progression are in geometric progression. Find the common ratio of the geometric progression.

**math**

The sum of the first 12terms of an arithmetic progression is 135 while the sum of the next 8 terms is 210. Find the common difference

**TC**

There are n arithmetic means between 1 and 31 such that seventh mean:(n-1)th mean =5:9. Find n.

**Maths**

Given the sequence:4;x;32.Determine the value(s) of x if the sequence is: 1.arithmetic 2.geometric

**meme**

Consider the system of equations A ⊗ x = b where (i) A ∈ R m×n max , x ∈ R n max, b ∈ R m max and Rmax = R ∪ {−∞}, (ii) ⊗ denotes the max-plus matrix (or matrix-vector) product based on the arithmetic operations of ”addition...

**Divine mercy school**

The arithmetic mean of x,y andz is 6 while that of x,y,z,t,u,v and w is 9. Calculate the arithmetic mean of t,u,v and w

**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 following but it did ...

**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. a35 =

**Arithmetic progession**

The third term of an A.P is 10times more than the second term. Find the sum of the eight and fifteen term of the A.P if the seventh term is seven times the first term

**Math**

The average (arithmetic means) of t and y is 15, and the average of w and x 15. What is the average of t, w, x, and y? (A) 7.5 (B) 15 (C) 22.5 (D) 30 (E) 60

**Arithmetic**

Find the sum. 1 − 1/2+1/4-1/8+....-1/512

**Urgent math**

Find the partial sum Sn of the arithmetic sequence that satisfies the given conditions. a2 = 5, a5 = 6.5, n = 15 S15 =

**pre algebra final exam**

Tell whether the sequence 1/3,0,1,-2... I'd arithmetic, geometric,or neither. Find the next three terms of the sequence

**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.

**src**

the 4th term of an arithmetic progression is 27 and the sum of the 1st and 4th term is 42. What is the third term

**math arithmetic sequence and series**

A theater has 30 seats in the first row, 33 seats in the second row, 36 seats in the third row, and so on in the same increasing pattern. If the theater has 15 rows of seats, how many seats are in the theater?

**MRGS SCHOOL.**

State the fundamental theorem of Arithmetic.

**Advanced Algebra**

If the number m, 4m-8, m^2-6 are the first three terms of an arithmetic sequnce, what is m? I don't know what equation to start with. I tried getting the m from 4m-8 which is equal to 2 but the answer is different on m^2-6. Most likely my method is wrong. What should I do in ...

**Math (arithmetic)**

The total seating capacity of an auditorium is 1,065. The first row has 21 seats arithmetic series and each row has one seat more than the row in front of it. How many rows of seats are there in the auditorium?

**ALGEBRA**

the arithmetic mean of two numbers exceeds their geometric mean by two. find the numbers if one is 40 less than the other? help me please to solve this...

**ALGEBRA**

the arithmetic mean of two numbers exceeds their geometric mean by two. find the numbers if one is 40 less than other? please help me to answer this homework.

**math**

How many terms are there In an arithmetic Sequence with a common different of 4 and with the first and last term 3 and 59 Respectively.

**Maths**

2,x,y are the first three terms of an arithmetic sequence.If the 2nd term is decreased by 1.The three terms will form a geometric sequence.calculate x and y and my working out is that if i said x-1

**algebra 2**

find the sum of the arithmetic series 13+11+9+...+(-25)

**Math**

What is the difference of the arithmetic sequence 7p+2, 5p+12, 2p-1?

**Math**

Find p so that 7p+2, 5p+12, 2p-1 ... form an arithmetic sequence.

**Math**

Form an arithmetic sequence by finding p in the numbers 7p+2, 5p+12, 2p-1...

**Math: Arithmetic Sequence.**

the 3rd of an Arithmetic sequence is 8 of the 16th term is 47. Find a subed 1 and the common difference. Construct the sequence.

**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.

**math**

The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16. Find S20

**math**

The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16. Find S20

**math**

The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16? Find S20

**math**

The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16? Find S20

**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.

**precalculus no clue**

Identify if the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic or geometric, then find the next term. and write the nth term. . t-3,t-2, t-1, t... . 1,-3/2,2,-5/2....

**precalculus**

Identify if the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic or geometric, then find the next term. and write the nth term. . t-3,t-2, t-1, t... . 1,-3/2,2,-5/2....

**college precalculus I still dont get it**

Identify if the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic or geometric, then find the next term. and write the nth term. 1. t-3,t-2, t-1, t... 2. 3/4,1/2,1/3,2/9... 3. 1,-3/2,2,-5/2....

**maths**

The 5th term of an arithmetic sequence is 11,12th term is 32.What are the first 3 terms?

**college precalculus**

Identify if the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic or geometric, then find the next term. and write the nth term. 1. t-3,t-2, t-1, t... 2. 3/4,1/2,1/3,2/9... 3. 1,-3/2,2,-5/2....

**Algebra**

The following problem refers to an arithmetic sequence. If a_4 = 15 and a_10 = 39, find a_40 and S_40. The _ represents subscript

**Math**

1.) What is the formula for the nth term of the arithmetic sequence that has a common difference of 8 and a first term of 4? 2.) What is the formula for the nth term of the geometric sequence that has a first term of 2 and a ratio of 3?

**Math**

I need help with sequences 2,1,1/2,1/4,... Is this arithmetic, geometric,neither, or both (geometric?) 7,9,11,13 arithmetic, geometric,neither, or both. (arithmetic?) 1,2,4,8... Whats the rule think the rule is: Start with one and multiply by two repeatedly 50,40,30,20 Rule ...

**math**

The 9th term of an arithmetic sequence is 12 and the 17th term is 28, find the 4th term of the arithmetic sequences

**Math**

identify the sequence as arithmetic, geometric, or neither. Explain your answer. 1.6, 0.8, 0.4, 0.2. plz help me I'm really confused.

**math**

if 4th term of an arithmetic progression is 3 times the 1st term nd 7th term exceeds twice the third term by 1. find the first term and common difference

**MATHEMATIC DEPARTMENT**

The second, third and ninth terms of an arithmetic progression forms the first, second and third terms of a geometric progression. Find the common ratio and hence the eleventh term of geometric progression.

**Math**

In an arithmetic series, the sum of the 5th to the 8th terms inclusive is 114, whilst the sum of the 12th to 15th terms inclusive is 198. What is the 21st term? I have got 99=2a +3d and 57= 2a+3d Im not sure what to do now

**math**

The 5th term of an Arithmetic Progression is 8 and the 12th term is 50. Determine the sequence

**Math**

Hi! Can someone help me with this? Thanks a bunch! Find the 10th partial sum of the following arithmetic sequence. 0.50, 0.9, 1.3, 1.7.....

**Math**

7. You are having a discussion about sequences with your classmate. She insists that the sequence 2, 3, 5, 8, 12 must be either arithmetic or geometric. Is she correct or incorrect? Explain.

**Algebra**

5. The local soccer team won the championship a several years ago, and since then, ticket prices have been increasing $20 per year. The year they won the championship, tickets were $50. Write a recursive formula for a sequence that will model ticket prices. Is the sequence ...

**Math**

1.) In the following problem, write the first five of the terms of the arithmetic sequence. a1=16.5 d=0.25 2.) Find a the correct formula for the an for the arithmetic sequence. a1=-1 d=5

**Math**

Determine whether this sequence is arithmetic or geometric. Find the next three terms. 4. 3, 12, 21, 30, .... A.40, 50, 60 B.38, 46, 54 C.39, 48, 57 D.36, 32, 39 A? Thank you

**Math**

Determine whether this sequence is arithmetic or geometric. Find the next three terms. 81, 27, 9, 3, . . . A. arithmetic, 0, –3, –6 B. geometric, 0, –3, –6 C. geometric, 1,1/3 , 1/9 D. The sequence is neither geometric nor arithmetic. Is the answer C? Thank you

**Math**

Determine whether each sequence is arithmetic or geometric. Find the next three terms. -4,8,-16,32... A. Arithmetic, 64,128,256 B. Geometric, -64,128,-256 C. Geometric, -48,64,-80 D. The sequence is neither arithmetic nor geometric sequence. B? Thank you

**Math**

Determine whether each sequence is arithmetic of geometric. Find the next three terms. 14,19,24,29.... A. Geometric,34,39,44 B. Arithmetic,32,36,41 C. Arithmetic, 34,39,44 D. This sequence is neither arithmetic or geometric. Is the answer C? Thank you

**MATH**

whats the answer to this? write an equation fr an arithmetic sequence with a 1st term of 8 and 4th term of -7. im stuck.

**math**

find the first 3 term s of an arithmetic sequence in which the 21 term is -54 and the fifteenth term is -170

**Pre-calculus**

The sum of the first two terms of an arithmetic series is 13 and the sum of the four terms is 46. Determine the first six terms of the series and the sum of the first six terms.

**Algebra**

find the value of p so that p+5, 4p+3, and 8p-2 will from successive terms of an arithmetic sequence, then find the three successive terms.

**math**

The 1st,5th,13th term of an arithmetic sequence are the first 3 terms of geometric sequence with a common ratio of 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.

**Math**

4. Which explains why the sequence 81, 3, 1/9,... is arithmetic or geometric? A)The sequence is arithmetic because it decreases by a factor of 1/27 B)The sequence is geometric because it decreases by a factor of 1/27 C)The sequence is arithmetic because it decreases by a ...

**Math Help!!!**

identify the sequence as arithmetic, geometric, or neither. explain your answer. 1.6 , 0.8 , 0.4 , 0.2 ....

**math**

Find the 6th term of the arithmetic sequence given an = (1/5)an-1, given a1 = 20

**Math Help!!!**

determine whether each sequence is arithmetic or geometric. find the next three terms. 1. 14,19,24,29.... geometric, 34,39,44 arithmetic,32,36,41 arithmetic 34,39,44**** the sequence is nether geometric nor arithmetic 2. -4,8,-16,32.... arithmetic. 64,128,256 geometric -64,128...

**Math**

Which explains why the sequence 64, 4, 1/4,... is arithmetic or geometric? A. The sequence is geometric because it decreases by a factor of 1/16. B. The sequence is arithmetic because it decreases by a factor of 1/16. C. The sequence is geometric because it decreases by a ...

**arithmetic**

second term is 8 and fourth term is 14.find the first term and the common difference.

**Math**

1. A door has a lock with a 5-digit keypad. To unlock the door, a person must enter a passcode consisting of three different digits, with each digit entered in the correct order. What is the probability that a randomly chosen passcode consisting of three different digits ...

**Advanced Algebra**

The arithmetic progression has first term 4 and last term 34. If the sum of its terms is 247, find the number of terms and their common difference.

**Arithmetic Reasoning**

A team won 8 of the 24 games it played in one season. What percent of games did it win?

**mathematic**

determine the arithmetic sequence that has the seventh term equal to 3 and the twelfth term equal to -3

**math**

32, k 3 , are three consecutive arithmetic terms find k

**Math**

Is 2, 3, 5, 8, 12 arithmetic, geometric, neither, or both?

**7th grade math**

For questions 1, 2 identify each sentence as arithmetic, geometric both or neither. 1) 7, 9, 11, 13 ...... A) arithmetic B) geometric C) both D) neither (my answer) 2) 2, 1, 1/2, 1/4, .... A) arithmetic B) geometric C) both (my answer) D) neither

**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..

**Math**

1. The sequence log2 32, log2 y, log2 128, ... forms an arithmetic sequence. What is the value of y? 2. If log a^2 b^3 = x and log (a/b) = y, what are the values of log a and log b?

**Math**

1. Find all values of p so that 6p, 4p-1, p^2 - 1 will be an arithmetic sequence. 2. The common ration of a geometric sequence is -3. IF the terms of this sequence are 3y, y+6, z+1, ..... respectively, what is the value of z?

**Algebra**

In an arithmetic sequence where a6=13 and a10=25, what is the explicit formula for the general term an?

**Arithmetic Progressions**

The second term of an arithmetic progression I four times the fits term, and the first term is ten. Find the common difference and hence find the sum of the first 12 terms.

**Algebra**

What are the first four terms of an arithmetic sequence if the common difference is 1.5 and the first term is 15? 15,30,45,60 15,16.5,18,19.5 15,22.5,33.75,50.625 none of the above What are the first four terms of a geometric sequence if the common ratio is 10 and the first ...

**addmath A.P.**

An arithmetic progression has 8terms.The sum of all 8terms is 180 and the sum of all odd terms is 80. Calculate (a)the first term and common difference (b)the last term

**Math ASAP**

2, 1,1/2 , 1/4 , . .. arithmetic geometric both neither I don't know how to solve it?

**math**

The third,sixth and seventh terms of a geometric progression(whose common ratio is neither 0 nor 1) are in arithmetic progression. Prove dat d sum of d first three is equal to d fourth term

**math**

the first term of the arithmetic sequence is -37 and the second term is-30 what is the smallest positive term of the sequence?

**math**

the first term of the arithmetic sequence is -37 and the second term is-39 what is the smallest positive term of the sequence?

**arithmetic**

a reguler hexagon is to be cut from a sheet of diameter D.what are width across corners?

**Arithmetic**

2 numbers, when multiplied by achother, equals(-70) but when added to gether it equates to 3. What are these two numbers?

**Math**

The 5th term of an arithmetic sequence is 22 and the 15th term is 62. Find the 100th term and the sum of the first 60 terms.

**Algebra**

The fifth term of an arithmetic sequence is 22 and the 15th term is 62. Find the 100th term and the sum of the first 60 terms

**Math**

The fifth term of an arithmetic sequence is 22 and the 15th term is 62. Find the 100th term and the sum of the first 60 terms. I'm having trouble figuring out how to do this.

**Algebra 2**

A large asteroid crashed into a moon of a planet, causing several boulders from the moon to be propelled into space toward the planet. Astronomers were able to measure the speed of one of the projectiles. the distance (in feet) that the projectile traveled each second, ...

**mathematics**

The sum of the first n term of ab arithmetic series is given by Sn=5/2n^2+7/2n Determine the first term and the common different and the tenth term

**pre cal 11**

i am stuck at a question that is asking for the common difference, first term, and general term for the arithmetic sequence the question is t10=50 and t27=152 i found my d=6 and t1=(-4) so know my equation is: tn=(-4)+(n-1)6 i had asken my teacher to tell me what the general ...

**pre cal 11**

hi so i am stuck at this question that is asking about arithmetic sequence . Five fence posts are equally spaced between two corner posts that are 42 meter apart. how far apart are the five fence posts. i know the answer is 7m but i don't know how plus i know the equation for ...

**Math 20-1**

Determine whether each sequence is geometric, arithmetic, or neither. Justify your answer. (1/5), (1/4), (1/3), (1/2), 1...