Questions on Algebra: Sequences of numbers, series and how to sum them answered by real tutors!

Tutors Answer Your Questions about Sequences-and-series (FREE)

Question 988564: Help needed with missing number:
29, 37, ?, 41, 37
answer:
a) 43
b) 39
C) 34
D) 33
Click here to see answer by macston(5194)

Question 988763: If Y is the midpoint of WZ, YZ = x + 3 and WZ = 3x-4 - determine the length of WZ
Click here to see answer by stanbon(75887)

Question 988795: What is the sum of 28 + (-3) ?

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Question 988822: Find the sum of the geometric sequence �3, 15, �75, 375, � when there are 7 terms

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Question 988859:
Average integers between 25 41
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Question 988859:
Average integers between 25 41
Click here to see answer by Edwin McCravy(20056)

Question 988856: 1 2 8 48 384
100 96 104 88 120 56
A Z E B I Y O
What comes after each series?
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Question 989038: 4a,-4a,8a,-8a?
Click here to see answer by Alan3354(69443)

Question 989251: One positive number is one-fifth of another number. The difference between the two numbers is 184, find the numbers.
Click here to see answer by stanbon(75887)

Question 989263: How do I slove this problem when it says each term is the term number times the next term number. What equation do I use?
Click here to see answer by Alan3354(69443)

Question 989509: Convert0.4444..... into rational number

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Question 989509: Convert0.4444..... into rational number

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Question 989605: Numerical pattern for 23, 69, 127, 368?
Click here to see answer by stanbon(75887)

Question 989730: bHelp needed with missing number:
Select the missing number
9, 21, 35, ?, 69
Solution:
a)50
b)51
c)60
d)61

Click here to see answer by farohw(175)

Question 989792: Find the sum of the sequence 1 + 2 + 3 + 4 + ... + 101
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Question 989942: What's the integer for spending $25 and what's the meaning or zero?
Click here to see answer by Alan3354(69443)

Question 989971: 2+4+6....+42
Click here to see answer by ikleyn(52788)

Question 990034: find the arithmetic sum:
6+2-2+...-50
Click here to see answer by MathLover1(20850)

Question 990060: 7, 16, 8, 27, 9, ?
Click here to see answer by farohw(175)

Question 990091: What are the first three terms of 3n-1 and the 100th term?
Click here to see answer by Timnewman(323)

Question 990088: -1/3p+1=10

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Question 990221: F(1)=7, f(n)=-4xf(n-1)+15
Click here to see answer by stanbon(75887)

Question 990294: Make up a numeric sequence of your own.Describe the pattern it uses.

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Question 990276: 55 5 79 9 =100
Click here to see answer by ikleyn(52788)

Question 990198: what are the next two terms for the sequence 31, 32, 37, 62,187?
Click here to see answer by ikleyn(52788)

Question 990456: the nth term of an AP is 4n - 5. Then the 15th term is?
Click here to see answer by KMST(5328)

Question 990494: The arithmetic mean of 25 numbers is 68.find their sum.explain me please
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Question 990551: How do you put the numbers 3,8,18,38,78 in arithmetic formula?
Click here to see answer by rothauserc(4718)

Question 990455: -7, -14, -21, ___, -28, ___, -35
In the preceding sequence, what are the missing numbers, and what is the logic behind the answer?
Click here to see answer by farohw(175)

Question 990767: Which number is next in this sequence?
0 1 7 17 30 45
Click here to see answer by solver91311(24713)

Question 990873: Consider the recursive rule
u(n) =0.85u(n-1) +147 [This is u sub n and 0.85 u sub n-1]
the long run value of any shifted geometeric sequence that is generated by this recursive rule is
147/.15 = 980
Sketch a graph sequence that is generated by this recursive rule and has a starting value below the long run value.. <� please help
Click here to see answer by KMST(5328)

Question 991008: what is the similarity between the numbers 85,17,19,4 and 2?
Click here to see answer by ikleyn(52788)

Question 991041: What is first number of the sequence if the last number is 17 and second number is 3.
Click here to see answer by farohw(175)

Question 991044: what is the similarity between 86 17 19 4 2
Click here to see answer by Alan3354(69443)

Question 991018: what is the similarity between 84,17,19,4,2?
Click here to see answer by Fombitz(32388)

Question 991220: There are 20 rows of seats on a concert hall:25 seats are in the 1st row, 27 seats on the 2nd row,29 seats on the 3rd row,and so on. If the price per ticket is 2,300, how much will be the total sales for a one-night concert if all seats are taken
Click here to see answer by stanbon(75887)

Question 991260: Calculate 35 less than 67
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Question 991254: Hello, please help us with this problem
1,4,9,16... what are the next three numbers in the sequence?
1,3,6,10... what are the next three numbers in this sequence?
Better yet could you tell us how to figure this out please? Thank you in advance for your help
66freq@gmail.com
Click here to see answer by solver91311(24713)

Question 991377: In a geometric sequence, the first term is 3 and the sixth term is 96.
a. Find the common ratio
b. Find the least value of n such that Un > 3000
Click here to see answer by ikleyn(52788)

Question 991503: What is the next number in this series? .25 1 4 25
Click here to see answer by ikleyn(52788)

Question 991710: how do you solve the problem ____, 108,_____,162,_____, 270,____,
Click here to see answer by stanbon(75887)

Question 991941: 1 2 3 3 2 1 1 2 3 2
what are next three number in the sequence
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Question 991951: What is the product of 60

Click here to see answer by Fombitz(32388)

Question 991994: What is the sum of 4 times a number and twice the sum of the same number and 3
Click here to see answer by macston(5194)

Question 992067: What would be the next three numbers in this sequence 2,7,9,11
Click here to see answer by Edwin McCravy(20056)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790