# Arithmetic

1. maths
the first term of an arithmetic progression is-4 and 15th term is double the 5th term. find the 12th term.
2. English
Can you check for punctuation errors, and improper formatting in my essay? Thank you so much Mathematics resolves abstract problem situations of daily life, strengthens the mental calculation, having as the base a logical order that contributes to the study of numbers, figures...
3. Math
The first term and last term of an arithmetic progression are -4 and 145 respectively. If the common difference is 4. (a) find the 12th term (b) find the 25th term.
4. Math
The first term and last term of an arithmetic progression are -3 and 145 respectively .if the common difference is 4.(a) find the 12th term (b) find the 25th term.
5. Mathematics
The common difference of an arithmetic sequence is d prove that the sum of first n terms and next n terms differ by n×n×d
6. Arithmetic Sequence of a¹ and d
Find the value of x a¹=x, d= 3x a9= 25
7. Mathematics
If the chairs in an auditorium are arranged in an arithmetic sequence 5 th row contains 31 chair and 16 th row contains 75 chairs then find the total number of chairs if there exists 20 rows
8. Arithmetic series
Suppose you are given the arithmetic sequence 3,6,9,...,99.What is the sum of the terms of this sequence?
9. Mathematics
If the chairs in an auditorium are arranged in an arithmetic sequence 5 th row contains 31 chair and 16 th row contains 75 chairs then find the total number of chairs if there exists 20 rows
10. arithmetic geometric
Determine whether each sequence is arithmetic geometric or neither if the sequence is arithmetic give the common difference if geometric give the common ratio 1. 6,18,54,162, 2. 4,10,16,22 3. 1,1,2,3,5,8 4. 625,125,25,5 5. 5,8,13,21,34
11. Math
The fourth term of an arithmetic sequence is 18 and the sixth term is 28. Give the first 3 terms
12. Math
The fourth term of arithmetic sequence is 18 and the sixth term is 28. Give the next three terms.
13. Math
In the arithmetic sequence -7, -4, -1, 2,..., what term is 44?
14. math
find the first and the 15 ters of an arithmetic sequence whose fifth term is -1 and ninth term is 11.
15. math
In how many positive four-digit integers that are not multiples of 1111 do the digits form an arithmetic sequence? (The digits must form an arithmetic sequence, in order. For example, the number 5137 does not count.)
16. Math
For the arithmetic sequence with given first term 4 and common difference 4: its nth term is __________ its 10-th term is ________
17. math
Find the indicated nth partial sum of the arithmetic sequence. 2, 10, 18, 26, . . ., n = 15
18. pre-calc
Find the indicated nth partial sum of the arithmetic sequence. 2, 10, 18, 26, . . ., n = 15
19. Math
In triangle ABC, the measure of ∠B is 90°, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F correspond to vertices A, B, and C, respectively, and each side of triangle DEF is 1/3 the length of the corresponding side of triangle ABC. What...
20. Arithmetic
A rectangular table is 2 ft wide and 4 ft long.How many square ft.of glass are neede to cover the entire table top?
21. Math
Geometric And Arithmetic Sequences a store manager plans to offer discounts on some sweater acording to this sequence: \$48, \$36, \$27, \$20.255,... What would be the price of a sweater after 8 discounts? Is this an arithmetic or geometric sequence?
22. math
What is arithmetic sequence?
23. math
If 6 times the sixth term of an arithmetic progression is equal to 9 times the 9th term, find the 15th term.
24. Math
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 factor ...
25. arithmetic
brandy wants to buy a digital camera that costs \$300. supposeshe saves \$15 each week, in how many weeks will she have enough money for the camera? use a bar diagram to solve arithmetically, then use an equation to solve algebraically
26. algebra
identify the sequence as arithmetic geometric or neither 3 4.5 6 7.5
27. math
identify the sequence as arithmetic, geometric, or neither 3, 4.5,6,7.5
28. Math
The first three terms of an arithmetic progression are 2x, x+4 and 2x+7 respectively. Find the value of x. I have no idea where to go from here – any help would be greatly appreciated, thanks in advance!
29. Math
If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the average of x, y, and z in terms of m? A) m+6 B) m+7***** C) 2m+14 D) 3m+21
1. Write a rule for the sequence. 8, -1, -10, -19... A. Start with 8 and add -9 repeatedly B. star with -9 and add 8 repeatedly C. start with 8 and add 9 repeatedly D. start with 8 and subtract -9 repeatedly--- 3. What is the 7th term in the following sequence? 48, 40, 32, 24...
1. Write a rule for the sequence. 8, -1, -10, -19... A. Start with 8 and add -9 repeatedly B. star with -9 and add 8 repeatedly C. start with 8 and add 9 repeatedly D. start with 8 and subtract -9 repeatedly--- 2. Find the next three terms of the sequence. -4, -8, -16, -32... ...
32. maths
The 7th and 13th term of an arithmetic sequence are 51 an 15 respectively. which term of the sequence is equal to -21
33. algebra
Margot and Francois were doing their algebra homework when Margot's dog, Pepe, bit off a piece of the paper they were working on. All they had left was a part of the sequence: 6, 12, ... and the fact that 1536 was another term of the sequence. Assuming the sequence is ...
34. Alg I
Margot and Francois were doing their algebra homework when Margot's dog, Pepe, bit off a piece of the paper they were working on. All they had left was a part of the sequence: 6, 12, ... and the fact that 1536 was another term of the sequence. Assuming the sequence is ...
35. Math
In a class of 20 students, the average (arithmetic mean) score on a test is 84 points. If 6 students each scored 100 points and 4 students each scored 50 points, what is the average of the scores of the remaining students?
36. math
In a class of 20 students, the average (arithmetic mean) score on a test is 84 points. If 6 students each scored 100 points and 4 students each scored 50 points, what is the average of the scores of the remaining students?
37. Math - Algebra
An architect is designing a building in the shape of a rectangular pyramid. The number of windows on each floor forms an arithmetic sequence. There are 76 windows on the 7th floor, 68 on the 8th floor, and 4 on the very last floor Find an explicit formula to show this sequence...
38. Math
Using algebraic expression no arithmetic symbols. Twice the quotient of a number divided by 5.
39. Math
Determine whether the sequence is arithmetic, geometric, both or neither. 16, 8, 4, 2 A. arithmetic B. Goemetric C. Neither D. Both
40. Further Mathematics Arithmetic Progression
I have a problem solving the question below could someone help me solve it or at least give me a hint on how to solve it ? If you can help here is the question ; p,q,r are three consecutive terms of an A.P whose sum is 21. The ratio p:r = 6:1 , Find p:q:r.
41. Math
I swear, last question! Calculate S(31) for the arithmetic sequence in which a(9) = 17 and the common difference is d = -2.1 -46 -29.2 32.7 71.3 Usually, I can figure these out but I'm stuck:(
42. Math
Calculate S(68) for the arithmetic sequence a(n) = (2/3)n + 1/6 87/2 273/6 139/3 4,726/3
43. arithmetic mean
the following data relate to size of shoes sold at a store during the given week find the average size by the short cut method size of shoes. 4,5,6,7,8,9,10 no of shoes 15,30,45,60,55,40,5
44. arithmetic mean
the average age of 5 children is 8 years. if the age of the father is included , the average increased by 7 years. find the age of the father.
45. arithmetic mean
the average age of 30 children in a class is 9 years if the teacher 's age is included, the average age becomes 10 years find the teacher's age
46. algebra
the sides of triangle are in arithmetic progession(AP)and of them is 60 find the angles in grade
47. math
In the following arithmetic sequence, what is the value of x? -2, 4, x, 16 . . .
48. math
if 1/2,1/x,1/3 are successive terms of an arithmetic progression. Show that 2-x /x-3 = 2/3.
49. Math
The fourth term of an arithmetic sequence is less than the fifth term by 3. The seventh term is three times the fifth term. Find the common difference and the first term
50. Math
What is the 2011th term of the arithmetic sequence -4,-1,2,5...., where each term after the first is 3 more than the preceding term? (Remeber -4 is the first term of the sequence)
51. algebra
The mean score on Mr. Pascal’s first semester exam for his 28 students is 73 points. If he removes the lowest score of 19 points, what is the adjusted class average (arithmetic mean)?
52. arithmetic progression
An arithmetic progression has 3 as its first term. Also, the sum of the first 8 terms is twice the sum of the first 5 terms. Find the common difference.
53. math
find the general term of the arithmetic sequence 3,-1 ,-5 ,-9
54. Algebra I
What is the 2011th term of the arithmetic sequence −4, −1, 2, 5, . . . , where each term after the first is 3 more than the preceding term?( remember -4 is the first term of the sequence.) (I posted this before but it was the wrong answer)
55. Algebra I
What is the 2011th term of the arithmetic sequence −4, −1, 2, 5, . . . , where each term after the first is 3 more than the preceding term?( remember -4 is the first term of the sequence.)
56. Alg 1
The mean score on Mr. Pascal’s first semester exam for his 28 students is 73 points. If he removes the lowest score of 19 points, what is the adjusted class average ? (arithmetic mean)
57. Math
which of the following sequences is an arithmetic sequence? 5, 20, 80, 320,... 6, 9, 5, 8, 4, 7,... 100, 10, 0.1, 0.01,... -1, 2, 5, 8,...
58. Math
Detemine the sequence as arithmetic, geometric, both or neither. 16,8,4,2,...
59. Arithmetic
A geometric series has a positive common ratio of r. The series has a sum to infinity of 9 and the sum of the first two terms is 5. Find the first four terms of the series.
60. Arithmetic
The sum of three consecutive terms of a geometric progression is 42, and their product is 512. Find the three terms.
61. Math
An arithmetic series has first term -50 and common difference 4. How many terms are in the series so that the sum of the series first exceeds 100?
62. Math
In an arithmetic progression, the 5th term is six times the 1st term and the sum of the first six terms is 99. Find the 1st term and the common difference. Attempt at solution: U5 = 6(U1) 99 = 3(2[U1] + 2d)
63. Math
In order to cover upfront expenses, Pinecrest Enterprises must be able to come up with \$50 million of its own capital reserves. Presently, Pinecrest has \$37 million in capital reserves available, and can add \$1.5 million per month . After how many months will Pinecrest ...
64. mental arithmetic
if p=3 and q=8 find the value of 3p+2-q how do I find out the value of 3p? can you please explain?
65. Algebra
How do you tell if a sequence is arithmetic?? Then I will answer my questions below: 1. Tell whether the sequence is arithmetic. If it is, Identify the common difference. -7, -3, 1, 5 A. Not arithmetic B. Arithmetic, common difference is 4 C. Arithmetic, common difference is 8...
66. math
determine whether the sequence is arithmetic,geometric,both,or neither. 16,8,4,2,... a.arithmetic b.geometric c.neither d.both
67. arithmetic
how many cups of sorbet are used in 8 cups of punch? Ginger Ale- 40% Orange Juice- 25% Pineapple Juice- 20% Sorbet- 15%
68. maths
collect marks of 10 of your classmates in different subjects in the recent examinations.estimate the arithmetic mean of marks in each subject and verify them by actual calculations.how many of your estimations represent exact mean
69. PreCalc
The fifth term of an arithmetic sequence is equal to 6 and the sum of the first 12 terms is equal to 45. Find the first term and the common difference. having trouble with this, can't figure out the steps?
70. Induction
Given the series 1,2,3,4,5,10,20,40,80,..... which starts as an arithmetic series for the first five terms and then follows geometric series. It can be proved by strong induction that any positive integer can be written as a sum of distinct numbers of this series. Has to be ...
71. Computer Architecture
Your project is to write a partial disassembler for MIPS instructions in Java. That is, your input will be the 32-bit machine instructions that a compiler or assembler produces. Your program then figures out what the original source instructions were that created those 32-bit ...
72. PHILOSOPHY
1. Some regular churchgoers believe that taxpayers' dollars should not be used to fund laboratories that carry out tests on animals for medical research. Hence, it is wrong to go on spending taxpayers' dollars for that purpose. Answer: False Cause 2. Yogi Berra, an Italian ...
73. Math
The arithmetic mean of a set of 50 numbers is 38.If the two numbers,45 and 55,are discarded,the mean of the remaining set of numbers is__.
74. algebra
the second and fifth terms of an arithmetic sequence are 5 and 38 respectively. Find the explicit formula for the sequence
75. Math
How do we find the sum of n terms of the series, 1+(4/7)+(7/49)+(10/343)+..... I know that it can be written as a combination of an arithmetic and geometric progression. 1=(4+3r)/(7^m) ; (r=-1 , m=0) 4/7=(4+3r)/(7^m) ;(r=0,m=1) But how do we find the sum of n terms?
76. Math
0 Tutors Online Right Now Math 20-1 Help What is this? What is tutors online right now mean? I need help What are points? See all FAQ Aron is training for a 10 km marathon swim in 19 weeks. Each week, his training plan includes a long distance swim. In week six, Aron swam a ...
77. Math
In 7 days, Mario cooked 98 pounds of spaghetti. Each day after the rst, he cooked 2 more pounds than he cooked than the day before. What is the difference between the average (arithmetic mean) number of pounds of spaghetti he cooked per day and the median number of pounds he ...
78. math
How many terms of the arithmetic sequence 88, 85, 82, . . . appear before the number -17 appears?
79. maths
An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference. pl give me the answer. maths - Steve Monday, July 17, 2017 at 12:11pm 10/2 (2a+9d) = 220 5/2 (2a+4*2d) = 100 maths - kumar yesterday at ...
80. maths
An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference. pl give me the answer.
81. Math
Find the arithmetic sequence whose 1st term is 1 and the 1st, 2nd and 6th terms form a geometric sequence
82. Maths
Three numbers are in the ratio 2:3:5. The first number, second number reduced by 5 and the third number form an arithmetic sequence. Then the three numbers are
83. Math
The third term of an arithmetic sequence is -12 and the seventh term is 8.what is the sum of the first 10 terms?
84. Math
How do we find the sum of n terms of the following? Tr= 5^r/[(r+1)(r+2)] I can see there's an arithmetic progression and a geometric progression? How do we combine them both to find n terms.
85. math
If the second term of an arithmetic sequence is -2 and the fourth term is 6, find the seventh term
86. Math
Four number have an arithmetic mean of 6 if fifth number is added to set the mean rises to 8 what is number added?
87. Maths
b.Find the seventeenth term of an Arithmetic Progression, whose 9th and 15th term are 19 and 37 respectively.
88. Math
Arithmetic sequences Find a8 and an for the sequence: -3, -7,-11
89. Algebra 2
Find the sum of the following arithmetic series. 13+11+9+...+(-25) Someone help please. Thanks
90. Arithmetic
32 is 40% of what number? I am brushing up on math that I haven't done in years. Could someone please explain this step-by-step to remind me how to do this kind of problem properly? Thank you!
91. Math
Write a rule for the nth term of the arithmetic sequence. -12, -5, 2, 9
92. Math
Arithmetic sequence: For a8 and an for the sequence: -3,-7,-11 My answer a8=33
93. Math
In a particular arithmetic progression, the sum of the first 10 terms is equal to the sum of the first twenty terms. Show that the sum of the first 30 terms is equal to 0.
94. Maths
The second term of arithmetic progression is 15 and the fifth term is 21 find the common difference with solutions
95. Algebra 2 check my last answer?!
A supermarket finds that the number of boxes of a new cereal sold increases each week. In the first week, only 16 boxes of the cereal were sold. In the next week, 33 boxes of the cereal were sold and in the third week 50 boxes of the cereal were sold. The number of boxes of ...
96. math!!
Three numbers are in an arithmetic progression; three other numbers are in a ge- ometric progression. Adding the corresponding terms of these two progressions yields 32, 26, and 32. The sum of the three terms of the arithmetic progression is 51. Find the terms of both ...
97. GGHSS COTTON HILL Maths
consider the arithmetic sequence 53,47,41 than what is the common difference and the algebraic expession of the given sequence
98. math
if the sixth term of an arithmetic progression is 37 and sum of the first six term is 147
99. arithmatic series
Could someone show me the difference between arithmetic sequence and series
100. math
What are the first three terms of an arithmetic series in which a1 =9,an=105, and Sn=741?
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