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July 2, 2015

Homework Help: Math: Arithmetic

Recent Homework Questions About Arithmetic

Math
The sixth term of an arithmetic progression is 265 and the sum of the first 5 terms is 1445. Find the minimum value of n so that the sum of the first n terms is negative.
Saturday, February 9, 2013 by azmeerahim

arithmetic
determine the secon termof an A.P whose sixth term is 12 and eighth term is 22?
Saturday, February 9, 2013 by dany

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 by Oyediran

arithmetic
What number is 7 more than another number their answer is 23 Find the numbers.
Wednesday, February 6, 2013 by Adrianne

math
the average (arithmetic mean) of a and b is 6 and the average of a, b, c is 11. What is the value of c?
Tuesday, February 5, 2013 by Oscar

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 by Lucas

Maths
Eric thinks of 2 sequences.One is geometric and the other arithmetic.Both sequences start with the number 3.The common ratio of the geometric sequence is the same as the common difference of the arithmetic sequence.If the 6-th term of the geometric sequence is 96.Find the ...
Sunday, February 3, 2013 by Lucas

Maths
An arithmetic and a geometric sequence have the same first terms.(2)....and the same second term say X..The sum of the first 3 terms of the arithmetic sequence equals to the third term of the geometric sequence.Calculate the first 3 terms of each sequences
Sunday, February 3, 2013 by Lucas

To Jessica
I have now corrected two of your replies in which you gave incorrect solutions. Unless you know what you are doing, please don't answer any questions dealing with topics not familiar to you . I know everybody makes mistakes, I make my share, but those are usually typos or ...
Thursday, January 31, 2013 by Reiny

math
be found arithmetic series 3a2-a6=-a2 a3+a4=19
Tuesday, January 29, 2013 by doruntina

math
3___,___,20 (arithmetic)
Tuesday, January 29, 2013 by kiawanna

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 by Bethold

Math PLEASE
It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up in four rows ...
Thursday, January 24, 2013 by Aliza

Math PLEASE
It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up in four rows ...
Thursday, January 24, 2013 by Aliza

Math
Find the no. of terms 1. 3,5,7...33 2.-5,-1,3,...75 Solve each problem. 1. In the Arithmetic sequence 5,8,11,14.... what is n if a sub n is 32? 2.Find the sum of the first 20 terms of the arithmetic sequence -15,-7,31,43...
Monday, January 21, 2013 by Aliza

math
The 6th term of an arithmetic sequence is x while the 11th is y find the 1st 2 terms
Sunday, January 20, 2013 by unknown

math arithmetic order of operations
(6.7 × 10-1) - (3.6 × 10-4
Saturday, January 19, 2013 by Anonymous

Algebra
Is the series 72, 48, 32,... an arithmetic or geometric series. WHat is common difference or ratio
Thursday, January 17, 2013 by Andrew

arithmetic
change 12/23 into a decimal to the nearest hundreth's
Wednesday, January 16, 2013 by mark

arithmetic
500 words / 8 minutes whats the unit rate
Monday, January 14, 2013 by 1200k

arithmetic
Using math to fine 9:20 am to 5:05 pm
Monday, January 14, 2013 by Margie

Math
Is there a way to find the term number of a sum in an arithmetic series? Like if you had the sum of the first 12 terms in a series could you find the term value of term 12 using the sum? For example in one of my previous questions : For each series, calculate t12 and S12 a) 37...
Saturday, January 12, 2013 by Crystal

Math
Determine the sum of the first 20 terms of the arithmetic sequence in which ... f) the 7th term is 43 and the 13th term is 109 I know you can make two equations : 43 = a + 6d and 109 = a + 12 d And subtract them to get d = 11 But I know there's another way to get d, that ...
Saturday, January 12, 2013 by Crystal

math
term given by x+2,3x-1,and 4x-1 form an arithmetic sequence. find the value of x. i didn't get it how to start this question and how it forms arithmetic sequence?
Wednesday, January 9, 2013 by Riana

Math
I'm learning series and sequences (grade 11). Please check that my steps show I understand what I'm doing/the concept and my answer as well: 5. The consecutive terms of an arithmetic sequences are 3.6, y, 8.2. Find the value of y. This seems to be a sequence question ...
Tuesday, January 8, 2013 by Crystal

arithmetic progression
If sum of first 21 terms of an arithmetic progression is 13 and that of first 13 terms is 21, show that sum of first 34 terms is -34 ?
Tuesday, January 8, 2013 by Bishnu

math
How will I know the equation of a sequence if it is not arithmetic nor geometric sequence?
Saturday, January 5, 2013 by mae

SeQuEnCeS and SeRiEs: HELP PLZ!
The first three terms of the sequence -8,x,y,72... form an arithmetic sequence, while the second, third and fourth terms form a geometric sequence. Determine x and y.
Friday, January 4, 2013 by kazz

Can someone help me?!
The 1st, 5th and 13th terms of an arithmetic sequence are the first three terms of a geometric sequence with a common ratio 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.
Thursday, January 3, 2013 by Jm

math
first term of the arithmetic sequence is 13. two other terms of the sequence are 37 and 73. common difference is consecutive terms integers. determine all possible values for 100th term.
Wednesday, January 2, 2013 by Riana

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?
Tuesday, January 1, 2013 by Riana

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

math
t11=19 and t17=61.then what will be S12? arithmetic series question
Tuesday, January 1, 2013 by Riana

maths-Arithmetic progression
Prove that mean of squares of first n natural numbers is (n+1)(2n+1)/6
Thursday, December 27, 2012 by Anonymous

maths-Arithmetic progression
A ladder has rungs 25 cm apart.The rungs decrease uniformly in length from 45 cm at the bottom to 25 cm at the top.If the top and the botom rungs are two nd a half metre apart, what is the length of the wood required for the rungs
Wednesday, December 26, 2012 by Anonymous

Math
Suppose the modified quota is 7.47. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Sunday, December 23, 2012 by Derrick

Alegbra
Suppose the modified quota is 2.77. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Sunday, December 23, 2012 by Casey

Math
Suppose the modified quota is 7.47. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Sunday, December 23, 2012 by Derrick

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 and 288 4.Find x if ...
Thursday, December 20, 2012 by Aliza

hi
What is the sixth term of the arithmetic sequence if the 10th term is 33 and the 15th term is 53.
Sunday, December 9, 2012 by Anonymous

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 by simranpreet

CALCULUS
The masses of 10 books are found to be in an arithmetic sequence. If their total mass is 13 kg and the lightest book has a mass of 400 grams, what is the mass of the heaviest book? 2,000 grams 2,100 grams 2,200 grams 2,300 grams 2,700 grams
Tuesday, November 27, 2012 by Chelsy

Chemistry
Use van der Waals’ equation to calculate the pressure exerted by 2.33 mol of ammo- nia at −3.7◦C in a 1.25 L container. The van der Waals’ constants for ammonia are a = 4.00 L2·atm/mol2 and b = 0.0400 L/mol. (The values for a and b have been ...
Tuesday, November 20, 2012 by Caitlin

arithmetic
Write 8tenth with common fraction and decimal fraction
Monday, November 19, 2012 by Anonymous

arithmetic
If you have 3.14 lbs of a food and it costs .88 a lbs. then how much money would that 3.14 cost?
Thursday, November 15, 2012 by Alice

math
What is the sum of a 22–term arithmetic sequence where the first term is 56 and the last term is –28
Wednesday, November 14, 2012 by brianna

arithmetic
does -9 + 2 equal 2 + (-9)?justify your answer.
Wednesday, November 14, 2012 by jerry

arithmetic
Amanda is making xookies for a charity event. She expects 10 people to come. She wants to have 3 cookies for each person. How can Amanda use a patter to find the product for 6 x 10?
Tuesday, November 6, 2012 by ahlana

math
Find the sum of the first 33 terms of the arithmetic sequence whose first term is 3 and whose 33rd term is -253
Tuesday, October 30, 2012 by Anonymous

Algebra 2
Determine if the sequence is arithmetic, geometric, or neither. If it is arithmetic or geometric, write a rule. 4,1,0,1,4 My answer: Neither (-2)^2 (-1)^2 0^2 1^2 2^2 Is it correct?
Friday, October 26, 2012 by Anonymous

arithmetic
If a blue box has 5 times as many marbles as a red box and the blue box has 24 more marbles than the red box how many marbles are in each box?
Tuesday, October 23, 2012 by Yorgelys

Math Statistics
What is the difference between "weighted mean" and "arithmetic mean?"
Friday, October 19, 2012 by Amelia

arithmetic
$30.00 x .6/2-$17.50=
Thursday, October 18, 2012 by sarah

arithmetic
I am greater than 200 but less than 500. The sum of my digits is 18. the product of my tens place digit and my 100's place digit equal 20. What digit am I ???
Sunday, October 14, 2012 by Mikey

arithmetic
How is eight hundred twenty-six thousandths written in decimal form?
Monday, October 8, 2012 by Connor

arithmetic
round to the nearest hundered and add the rounded numbers:385,4012,856
Wednesday, October 3, 2012 by man

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 by Nina

arithmetic
If the average of a and b is 10 and a^2 - b^2 = 80, what is the value of b?
Friday, September 28, 2012 by Anonymous

Math (12th)
What are the next three terms of the arithmetic sequence -18, -13, -8, -3,…?
Thursday, September 27, 2012 by Michelle

Math (12th)
What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18, ...
Thursday, September 27, 2012 by Lydia

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 by Chrissey

arithmetic
jane says that 546 can be represented by 53 tens and 16 ones. Is she correct? Elain
Monday, September 24, 2012 by antonio

writing
I have been trying to work on this assignment and I am not really understanding it and I try to get help from my teacher and she keeps sending me this and telling me when I do this she will help me with the rest but I don't understand this and I have told her this and she ...
Monday, September 24, 2012 by Wayne

arithmetic
f(x)=x^2+4x+3=
Sunday, September 23, 2012 by lisa

Math SL
An Arithmetic sequence has a tenth term of 17 and a fourteenth term of 30, ind the general term PLEASE HELP!!!!
Saturday, September 22, 2012 by Britney OW

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 by Math

Voiting and apportionment
Suppose the modified quota is 5.87. Whate is the lower quota? what is the upper quota? Find the arithmetic mean of lower and upper quotas. Find the geometric mean of upper and lower quotas.Round the given modified quota by comparing it with arithmetic mean to 2 decimal places...
Sunday, September 16, 2012 by Sue Jackson

arithmetic
A water tank can hold 56 1/4 litres of water .How much water is contained if it is 8/15 full?
Thursday, September 13, 2012 by sreemonti mukherjee

Precalculas
The sum of the first 30 terms of one arithmetic sequence is 300 more than the sum of the first 30 terms of another arithmetic sequence. what could the  sequences be?
Sunday, September 9, 2012 by G

Math
Identify the pattern in each arithmetic sequence and then find the missing terms. 45,38,31,24, _ ,_
Thursday, September 6, 2012 by Shion

arithmetic
lim x->0 (e^x^2 - 1)/(square root(1+sinx)- square root(cosx))
Tuesday, September 4, 2012 by Lea

Math
which is the easies,t Arithmetic Series or a Geometric Series? and why?
Saturday, September 1, 2012 by Liz

statistics
A source in the Internal Revenue Service has stated that historically 90% of federal tax returns filed are free of arithmetic errors. A random sample of 25 returns are selected and checked carefully for arithmetic errors. Assuming independence, find the probability that a. all...
Thursday, August 30, 2012 by Sarah

statistics
A source in the Internal Revenue Service has stated that historically 90% of federal tax returns filed are free of arithmetic errors. A random sample of 25 returns are selected and checked carefully for arithmetic errors. Assuming independence, find the probability that
Wednesday, August 29, 2012 by Anonymous

Math
The height (in feet) of a small weight oscillating at the end of a spring is h(t) = 0.5 cos(2t) where t is in seconds, 0 ≤ t ≤ 5. (This is calculus. Use radians!) (a)Calculate the weight’s average velocity over the time interval 1 ≤ t ≤ 3. Show ...
Wednesday, August 29, 2012 by Dede

arithmetic
a student says that 30 more seventh graders bought canned drinks than eighth graders.Describe and correct the error made in drawing this conclusion from the graph?
Monday, August 27, 2012 by bettie

arithmetic
find the value of each group of base ten blocks = 100 block = 10 small block = 1 how do you figure this out?
Wednesday, August 22, 2012 by thomas

Math
FIve players played a scored board game. If the average ( arithmetic mean) of the scores of the five players was 21, and if each person had a positive integer score, what is the greatest score any one player could have obtained? a) 33 b) 50 c) 75 d) 94 e) 101 ( please explain ...
Wednesday, August 15, 2012 by Sarah

Math
Which of the following CANNOT be the average ( arithmetic mean) of four positive even integers? a) 1 b) 2 c) 6 d) 9 e) 17 ( please explain or show work. It will help me understand it better! Thanks)
Wednesday, August 15, 2012 by Sarah

averages
if a<b<c<d<e<110 and the average (arithmetic mean) of a,b,c,d,e is 100 what is the lease possible value of a
Tuesday, August 7, 2012 by Anonymous

Math
1)If a (theres a square)b is defined as the average of a and b, what is the value of 2 (theres a square) 4 (theres a square) 9? a) 3 b)5 c) 6 d)7.5 e) 18 2)If A=(r+s)F, what is the average of r and s when A=8 and F=2? 3) For the three numbers a,j,k, (a<j<k),the ...
Sunday, August 5, 2012 by Grace

Math 126
State whether the following sequence is arithmetic,geometric,or neither. 0,1,4,9,16,25,36,...
Saturday, August 4, 2012 by Billie

math
Write the first five terms of the arithmetic sequence. a1 = -37; d = 9
Friday, August 3, 2012 by steve

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...
Wednesday, August 1, 2012 by Tony

arithmetic
Three men are working together can finish a house repair job in 10 days. How many days will 5 men working at the same rate finish the same job?
Wednesday, July 25, 2012 by reena

Precalc
Find a4 for the arithmetic series with s4=-36 and a1=9
Saturday, July 21, 2012 by Wren

Math
an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3 points Question 2 Write the first four terms of the sequence whose general term is given. an = 2(2n - 3) Answer -6, -2, 2, 6 -1, 1, 3, 5 -2, -4, -6, -8 -2, 2, 6, 10 3 points Question 3 Write the first ...
Tuesday, July 17, 2012 by Tony

Math
The average (arithmetic mean) and median of the five numbers a,a,b,c, and c are 20 and 30, respectively. If a < b < c, what is the value of a + c?
Wednesday, July 11, 2012 by Samantha

AP Calculus
Find the sum of the first n terms of the sequence. The sequences are either arithmetic or geometric. 13. -1, 11, -121, ...; n = 9 A. 235,794,769 B. 429,981,696 C. -429,981,696 D. 196,495,641 E. -196,495,641 F. -235,794,769 I know that n = # of terms (9) d = -11 a = -1 formula...
Tuesday, July 10, 2012 by Brock

Math PLEASE HELP PLEASE PLEASE PLEASE
Question 1 Write the first four terms of the sequence whose general term is given. an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3 points Question 2 Write the first four terms of the sequence whose general term is given. an = 2(2n - 3) Answer -6, -2, ...
Tuesday, July 10, 2012 by Tony

Math
Question 1 Write the first four terms of the sequence whose general term is given. an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3 points Question 2 Write the first four terms of the sequence whose general term is given. an = 2(2n - 3) Answer -6, -2, ...
Tuesday, July 10, 2012 by Anonymous

algebrall
Which is an arithmetic sequence? A. 1, 4, 9, 16, . . . B. 2, 1, –1, –4, . . . C. 4, 8, 16, 32, . . . D. 21, 9, –3, –15, . . . . help please
Tuesday, June 26, 2012 by leo

arithmetic
what is 4.2% of $24,000?
Tuesday, June 26, 2012 by cheryl

arithmetic
is 10, 10.25, 10.50625, 10.76890625 an arithmetic sequence
Sunday, June 24, 2012 by Anonymous

ALGEBRA
Suppose the modified quota is 9.27. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Saturday, June 16, 2012 by Urgen please help

Math
Suppose the modiefied quota is 5.37. Find the lower quotas and the upper quotas. Find the arithmetic means of the lower and upper quotas. Find the geometric means of the lower and the upper quotas. Round the given modified quotas by comparing it with the geometric means.
Saturday, June 16, 2012 by Linda

ALGEBRA
Suppose the modified quota is 9.27. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower and upper quotas. (e) ...
Thursday, June 14, 2012 by Urgen please help

arithmetic
lim_(x->0) (1/x^2-1/(sin^2(x)))
Thursday, June 14, 2012 by dona

arithmetic
lim(x->1)( x^(n+1)-(n+1)+...n)/(x-1)^2
Thursday, June 14, 2012 by donaa

math
Find the sum of the arithmetic progression 4 + 9 + 14 + 19 + …….94 + 99 + 104
Wednesday, June 13, 2012 by dan

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Homework Help: Math

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