Friday

November 27, 2015
**arithmetic**

second term is 8 and fourth term is 14.find the first term and the common difference.
*Monday, March 23, 2015 by kagai*

**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 ...
*Sunday, March 22, 2015 by Linda*

**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.
*Friday, March 20, 2015 by Ina*

**Arithmetic Reasoning**

A team won 8 of the 24 games it played in one season. What percent of games did it win?
*Friday, March 20, 2015 by Gotta pass these word prblem math test*

**mathematic**

determine the arithmetic sequence that has the seventh term equal to 3 and the twelfth term equal to -3
*Thursday, March 19, 2015 by thulani*

**math**

32, k 3 , are three consecutive arithmetic terms find k
*Thursday, March 19, 2015 by rachel*

**Math**

Is 2, 3, 5, 8, 12 arithmetic, geometric, neither, or both?
*Wednesday, March 18, 2015 by Riccardo Arjona*

**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
*Wednesday, March 18, 2015 by Ashley*

**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..
*Saturday, March 14, 2015 by Anon*

**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?
*Friday, March 13, 2015 by Lily*

**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?
*Friday, March 13, 2015 by Lily*

**Algebra**

In an arithmetic sequence where a6=13 and a10=25, what is the explicit formula for the general term an?
*Thursday, March 12, 2015 by Marie*

**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.
*Tuesday, March 10, 2015 by Steph*

**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 ...
*Monday, March 9, 2015 by Jeff*

**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
*Sunday, March 8, 2015 by mandy*

**Math ASAP**

2, 1,1/2 , 1/4 , . .. arithmetic geometric both neither I don't know how to solve it?
*Saturday, March 7, 2015 by SmartyPants*

**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
*Friday, March 6, 2015 by toyinbo*

**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?
*Wednesday, March 4, 2015 by Ola*

**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?
*Wednesday, March 4, 2015 by Ola*

**arithmetic**

a reguler hexagon is to be cut from a sheet of diameter D.what are width across corners?
*Thursday, February 26, 2015 by uday*

**Arithmetic**

2 numbers, when multiplied by achother, equals(-70) but when added to gether it equates to 3. What are these two numbers?
*Tuesday, February 24, 2015 by INeedHelp*

**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.
*Monday, February 23, 2015 by Anonymous*

**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
*Sunday, February 22, 2015 by Rachel*

**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.
*Saturday, February 21, 2015 by Lilly*

**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, ...
*Wednesday, February 18, 2015 by Nicole*

**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
*Sunday, February 15, 2015 by mapule*

**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 ...
*Friday, February 13, 2015 by jessica*

**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 dont know how plus i know the equation for ...
*Friday, February 13, 2015 by jessica*

**Math 20-1**

Determine whether each sequence is geometric, arithmetic, or neither. Justify your answer. (1/5), (1/4), (1/3), (1/2), 1...
*Friday, February 13, 2015 by Joweria*

**arithmetic progressions**

how to know whether i should use formulaes in this question or that question becoz i colllapsed and put the formulae to another question
*Monday, February 9, 2015 by vanisri*

**math**

The third and fifth term of an arithmetic progression are 10 and-10 respectively. a)Determine the first and the common difference t3 = a + 2d = 10 t5 = a + 4d = -10 -a -2d = -10 a + 4d = -10 2d = -20 d = -10 a + 2(-10) = 10 a -20 = 10 a = 30; d = -2 b)The sum of the first 15 ...
*Sunday, February 8, 2015 by kudu*

**MATH**

THE FIRST AND LAST TERMS OF AN ARITHMETIC SERIES IS 5 AND 61 RESPECTIVELY WHILE THE SUM OF ALL THE TERMS IS 957. DETERMINE THE NUMBER OF TERMS IN THE SERIES.
*Tuesday, February 3, 2015 by CLARENCE KHUMALO*

**Math **

Identify the sequence as arithmetic, geometric, or neither. Explain the answer. 1.6, 0.8, 0.4, 0.2,...... I m not sure please help
*Monday, February 2, 2015 by BUBBLES*

**math**

The first, the third and the seventh terms of an increasing arithmetic progression are three consecutive terms of a geometric progression. In the first term of the arithmetic progression is 10 find the common difference of the arithmetic progression
*Monday, February 2, 2015 by kudu*

**math **

The sum of the first 10 term of an arithmetic sequence is 145 and the sum of the fourth and ninth term is five times the third term. Determine the first term and constant difference.
*Sunday, February 1, 2015 by matso *

**math**

in an arithmetic sequence the common difference is equal to 2.the first term is also the first term of a geometric sequence. the sum of the first 3 terms of an arithmetic sequence and the sum of the first 9 terms of an arithmetic sequence form the 2nd and 3rd terms of a ...
*Friday, January 30, 2015 by Brainblocked*

**arithmetic**

Determining the first three terms of an ArithmetiC progressionof which the (a.)10th term is 31 and the 15th term is 49 (b.)7th term is 3 and 12th term is -3 (c.)5th term is 8 and the 11th term is -28 (d.)9th term is7+9x and d=2x,Show all calculations
*Tuesday, January 27, 2015 by Thandi Mstletoe*

**MATH!!**

~Determine whether each sequence is arithmetic or geometric fund the next three terms~ *Doing a math unit test and stuck on these five* 1.14,19,24,29.... 2.-2,8,-16,32... 3.81,27,9,3... 4.What are the first four terms of an arithmetric sequence if the common diffrence is 1.5 ...
*Tuesday, January 27, 2015 by Makayla<3*

**maths**

X,4x+5 and 10x-5 are the first three terms of an arithmetic sequence. Determine the value of X.
*Sunday, January 25, 2015 by Thando Mtembu*

**math**

What is the value of the 30th term in the following arithmetic sequence? 12, 6, 0, -6, ...
*Friday, January 23, 2015 by Jobe*

**Math**

In an arithmetic sequence the seventh term exceeds the fourth term by 15 determine the common difference
*Thursday, January 22, 2015 by Restoration*

**Trig/Precalc**

Two questions that I would really appreciate some hints on: 1) Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation for a common external tangent can be written in the form y=mx+b with 0<m. What is b? 2) In triangle ABC, AB=BC, and BD is an ...
*Tuesday, January 20, 2015 by majorbill*

**arithmetic**

0.2[5.28-(0.7)=
*Monday, January 19, 2015 by Anonymous*

**math**

The sum of first 12 terms of an arithmetic series is 186, and the 20th term is 83. What is the sum of first 40 terms?
*Sunday, January 18, 2015 by josh *

**Arithmetic **

The Gardiner dam located 100 km south of Saskatoon is largest earth filled dam in the world. Upon it's opening in 1967, engineers discovered that the pressure from lake deifenbaker had moved the clay based structure 200 cm downstream. Since then, then the dam has been ...
*Sunday, January 18, 2015 by hinata*

**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.
*Sunday, January 18, 2015 by Mirriam*

**MATHEMATICS**

THE FIFTH TERM OF AN ARITHMETIC SEQUENCE IS 23 AND THE 12TH TERM IS 72.AND THEY SAY DETERMINE THE FIRST THREE TERMS OF THE SEQUENCE AND NTH TERM
*Sunday, January 18, 2015 by LERATO*

**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
*Friday, January 16, 2015 by Rabelani*

**Maths**

The first, third and ninth terms of an arithmetic sequence form the terms of a geometric sequence. Find the common ratio of the geometric sequences. a, a+2d, a+8d a+2d/a = a+8d/a+2d ?
*Friday, January 16, 2015 by Michael*

**mathematics**

if the sum of the 6th and 7th terms of an arithmetic progression is 60 and the 3rd term is -5 find the common difference
*Sunday, January 11, 2015 by Bella*

**math**

I would need help with example: The three numbers are consecutive terms of arithmetic progression and the sum of their second powers is 126. The first number 3 times smaller, the second number with no change and the third number 4 times greater, are the 3 consequtive terms of ...
*Sunday, January 11, 2015 by Viktoria*

**math**

I would need help with example: The sum of three consecutive terms of geometric progression is 9. The first number with no change, the second number plus 12 and the third number minus 3, are the 3 consequtive terms of arithmetic progression. What are the values of original 3 ...
*Saturday, January 10, 2015 by Viktoria*

**math**

Find first term and common difference of arithmetic sequence whose 13th them is 159 and 20th is 264.
*Friday, January 9, 2015 by Ayane*

**math**

An arithmetic series consists of five terms; the second term is 7 and the last term is 22. write out the full series.
*Thursday, January 8, 2015 by Abdul*

**Maths**

An arithmetic series consists of five terms; the second term is 7 and the last term is 22. write out the full series.
*Wednesday, January 7, 2015 by Abdul*

**Math**

what is the 15th term of an arithmetic sequence in which the third term is 1985 and the eighth term in 2015?
*Tuesday, January 6, 2015 by Samantha Cooper*

**math**

the ninth term of an arithmetic progression is 52ind the and the sum of the first twelve terms is 414.find the first term and the common difference.
*Sunday, January 4, 2015 by jaylan talib*

**Maths**

If the 6th term of an arithmetic sequence is 48, and the sum of the first 6 terms is 300, what is the first term and the constant different?
*Sunday, January 4, 2015 by Janic*

**Maths**

If the 6th term of an arithmetic sequence is 48, and the sum of the first 6 terms is 300, what is the first term and the constant difference?
*Sunday, January 4, 2015 by Jane*

**ALGEBRA**

if the 6th term of an arithmetic sequence is 48, and the sum of the first 6 term is 300, what is the first term and the constant difference? Pls help as I have never learn this before,need some example to start with.thank you
*Saturday, January 3, 2015 by JANE*

**Helppp**

IF A is the median of {1,2,3...,10}, and B is the median of 1,2,3,4,...11, what is the average (arithmetic mean) of A and B? Express your answer as a decimal? "{}" is no different from B
*Friday, December 19, 2014 by factions*

**Math**

Is the sequence arithmetic? 15, 14.5, 14, 13.5, 13,....If so, give the common difference.
*Friday, December 19, 2014 by Anonymous*

**Math **

Let a1,a2,......a10 be an arithmetic sequence. If a1+a3+a5+a7+a9=17 and a2+a4+a6+a8+a10=15 then find a1.
*Monday, December 15, 2014 by Matt *

**Math **

Penn writes a 2013-term arithmetic sequence of positive integers, and Teller writes a different 2013-term arithmetic sequence of integers. Teller's first term is the negative of Penn's first term. Each then finds the sum of terms in his sequence. If their sums are ...
*Monday, December 15, 2014 by Matt *

**Math **

Penn writes a 2013-term arithmetic sequence of positive integers, and Teller writes a different 2013-term arithmetic sequence of integers. Teller's first term is the negative of Penn's first term. Each then finds the sum of terms in his sequence. If their sums are ...
*Sunday, December 14, 2014 by Matt *

**Math **

Problem 6: Let a1,a2,.........a10 be an arithmetic sequence. If a1+a3+a5+a7+a9=17 and a2+a4+a6+a8+a10=15, then find a1.
*Sunday, December 14, 2014 by Jake *

**Algebra **

Let a1,a2,a3..... be an increasing arithmetic sequence of integers. If a4a5=13 what is a3a6?
*Saturday, December 13, 2014 by Jake *

**Algebra**

Solve for x>0 in the following arithmetic sequence 1^2,x^2,3^2.....
*Saturday, December 13, 2014 by Jake *

**Algebra **

The fifth term of an arithmetic sequence is 11. If the difference between two consecutive terms is 1, what is the product of the first two terms?
*Saturday, December 13, 2014 by Jake *

**Algebra **

The second and ninth terms of an arithmetic sequence are 2 and 30 respectively. What is the fiftieth term.
*Saturday, December 13, 2014 by Matt *

**calculous (check)**

If air resistance is neglected, a falling object travels 13 ft during the first second, 39 ft during the next, 65 ft during the next, and so on. These distances form the arithmetic sequence 13, 39, 65, ... .In this sequence, a(subscript)1 = 13 d equals 26. Find a formula for f...
*Friday, December 12, 2014 by Tyler*

**Sequences**

An arithmetic sequence has first term of 6 and difference of 8; what is the tenth term? a10(subscript 10) = ?
*Friday, December 12, 2014 by Leon*

**Mathematics**

Insert three arithmetic mean and solve the nth term of 1 and 2
*Thursday, December 11, 2014 by Anonymous*

**problem solving**

What rectangular regions could be enclosed? Areas? Organize a table? Make a graph? Which rectangular region has the most area? from a table? from a graph? from algebra, using the arithmetic mean-geometric mean inequality?
*Monday, December 8, 2014 by kakak*

**Algebra**

Please help me to to solve this quadratic equation word problem. Here is the question: The Abacus. The Chinese abacus consists of a frame, parallel wires, and beads that are moved to perform arithmetic computations. The frame is 21 Centimeters longer than it is high, which is ...
*Friday, December 5, 2014 by lpcruz*

**precal Arithmetic progression**

The fifth term of an arithmetic series is 12 and the eighth term is 3. Find the sum of the first 6 terms and also of the first 11 terms. T5=a+4d=12 T8=a+7d=3 -3d=9 d=-3
*Tuesday, December 2, 2014 by Jelon*

**Alg !**

What is the sum of the first 4 terms of the arithmetic sequence in which the 6th term is 8 and the 10th term is 13?
*Friday, November 28, 2014 by Karly Ward*

**math**

8,18,28,38,48 what is the next term? i came up with 10 am i correct? is this consider arithmetic or geometric?
*Wednesday, November 26, 2014 by angela*

**Algebra, help please!!!**

Find the mean and the median in the following arithmetic sequences: A: 1, 3, 5, 7, 9 B: 1, 3, 5, 7, 9, . . . ., 199 C: 7, 10, 13, 16, . . ., 607
*Wednesday, November 19, 2014 by Ashley*

**arithmetic**

In Jullian's garden, there are 3 rows of carrots, 2 rows of string beans,and 1 row of peas. There are 8 plants in each row. How many plants are there in all?
*Wednesday, November 19, 2014 by Bridget*

**arithmetic**

the clock at the capitol building has an hour hand that is 12 feet long.how many feet will the top of the hand move between the hours of the midnight and 8am?
*Wednesday, November 19, 2014 by srivani*

**arithmetic**

How do I solve 15x=75?
*Sunday, November 16, 2014 by Rose*

**arithmetic**

If you spent 85% of your money and have only $75.00 left, how much money did you start with?
*Sunday, November 16, 2014 by Rose*

**Arithmetic Progression**

the sum of the first and second terms of ap is 4 and the tenth term is 19. find the sum of the 5th and 6th
*Wednesday, November 12, 2014 by Josiah*

**arithmetic**

the 20th sum of an arithmetic progression is -7 and the sum of the first 20 terms is 620. find the 1st and 30th terms i am looking at using S20 = a(1-rn)/l-r = 620. but i am reallys tuck and think i am very wrong. please help.
*Saturday, November 8, 2014 by livvy*

**arithmetic**

if the internal diameter of a cylindrical iron piep is 2.8 cm . If the pipe is melted uniformly by 1 mm then it formed a cylindrical rod ,find the diameter of the new rod?
*Wednesday, November 5, 2014 by Anonymous*

**arithmetic**

If you have 3 cups of pineapple juice and, how many total cups of punch can you make? Table: Ginger Ale - 40% OJ 25% Pineapple juice 20% Sorbet 15
*Monday, November 3, 2014 by AJ *

**math**

A 20-year-old student decided to set aside $100 on his 21st birthday for investment. Each subsequent year through his 55th birthday, he plans to increase the investment on a $100 arithmetic gradient. He will not set aside additional money after his 55th birth- day. If the ...
*Monday, November 3, 2014 by Anonymous*

**Economics**

A 20-year-old student decided to set aside $100 on his 21st birthday for investment. Each subsequent year through his 55th birthday, he plans to increase the investment on a $100 arithmetic gradient. He will not set aside additional money after his 55th birth- day. If the ...
*Monday, November 3, 2014 by NEED HELP!!!!*

**Algebra **

Define a#b as the arithmetic mean of a and b. What is the value of ((1#2)#2)#4? Express your answer as a common fraction. The hashtag is just a sign. Thank you!
*Saturday, November 1, 2014 by Trish Goal*

**math**

What is the d value of the following arithmetic sequence? 5, 2, -1, -4, -7,… A. 3 B. -3 C. 4 D. -4
*Wednesday, October 29, 2014 by bo*

**math**

Find the first arithmetic mean between 100 and 135 given the following sequence: ..., 100, ___, ___, ___, ___, 135, ... A. 107 B. 114 C. 121 D. 128
*Wednesday, October 29, 2014 by jax*

**Economics**

A 20-year-old student decided to set aside $100 on his 21st birthday for investment. Each subsequent year through his 55th birthday, he plans to increase the investment on a $100 arithmetic gradient. He will not set aside additional money after his 55th birth- day. If the ...
*Wednesday, October 29, 2014 by NEED HELP!!!!*

**Algebra**

What function represents the arithmetic sequence 3,7,11,15?
*Thursday, October 23, 2014 by Steve*

**Algebra**

What is the 9th term of the arithmetic sequence defined by the rule below? A(n)=-14+(n-1) (2)
*Thursday, October 23, 2014 by Steve*

**arithmetic**

The minute hand on a clock is 49mm long. What area does it pass over in 30 minutes.
*Thursday, October 23, 2014 by Vanetta*

**arithmetic**

The minute hand on a clock is 19mm long.What area does it pass over in 30 seconds.
*Wednesday, October 22, 2014 by vanetta*

**arithmetic**

A set of 7 numbers has a mean of 9. What additional number must be included in this set to create a new set with a mean that is 3 less than the mean of the original set?
*Monday, October 20, 2014 by Praveen*

**maths **

the first term of arithmetic progression is -8 .and the ratio of the 7th and the 9th term is 5 :8 .find the common difference.
*Monday, October 20, 2014 by mafo *

**arithmetic**

what is the perimeter of a lions cage which is 12mlong and 5.5 wide
*Thursday, October 16, 2014 by Anonymous*