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 946811: which term of the sequence 5,7/2,2....is -19
Click here to see answer by Fombitz(32388)

Question 947071: You are walking away from home at a constant velocity of 5 km per hour. The first landmark you see is your favorite fountain which happens to be 2 km from your house. Which of the following sequences describes the distances you cover at intervals of one hour, starting when you pass the fountain?
A. 5, 7, 9, 11, 13, ...
B. 2, 7, 12, 17, 22, ...
C. 2, 4, 6, 8, 10, ...
D. 10, 12, 14, 16, 18, ...
E. 5, 10, 15, 20, 25, ...
Click here to see answer by Theo(13342)

Question 947109: H.M between 3+√27 and 3-3√3 is? plz explain
Ans is -6
Click here to see answer by Fombitz(32388)

Question 947206: Find the missing complex number
(4+i)(?)=4+35i
Click here to see answer by Fombitz(32388)

Question 947298: In the geometric sequence 4, 10, 25, 62 1/2, n... What is the 5th term, n?
Click here to see answer by reviewermath(1029)

Question 947272: The 5th term of a geometric progression is 4375 and it 2nd term is 35.find the 3rd term.
Click here to see answer by josgarithmetic(39617)

Question 947490: Please help me solve this equation 28 gallons increased by 25%

Click here to see answer by nerdybill(7384)

Question 947571: IF 7x cups = 2 liters, then what dose x equal.

Click here to see answer by MathLover1(20850)

Question 947563: the mean of five is 6 numbers is 6 find the sum of five numbers

Click here to see answer by Alan3354(69443)

Question 947913: A number is 24 more than another. If their sum is 38, what are the numbers?
Hubert is three years older than Jovie. The sum of their ages is 51. Jovie's age is...
Click here to see answer by Alan3354(69443)

Question 948070: In the sequence 3, 9, 27, 81 ... the first term is 3 and each following term is 3 times the term before it. Of the following, which is an expression for the 100th term of the sequence? Please be detailed.
Click here to see answer by MathLover1(20850)

Question 948183: find the value of k so that 2k+2,5k-11,7k-13 is a geometric progression
Click here to see answer by Edwin McCravy(20056)

Question 947874: Determine the x value on this sequence (16,35,x,91) and T1,T5and
T2 are not given
Click here to see answer by Edwin McCravy(20056)

Question 948174: P,Q,R are consecutive odd numbers in ascending order.If the value of 3 times P is 3 less than 2 times R , find the value of R.
Click here to see answer by Fombitz(32388)

Question 948351: 1. a.what is the common ratio of the sequencing 2,4,16,...?
b.what are the next three terms in the sequence?
Click here to see answer by MathLover1(20850)

Question 948454: complete sequence -1;-1/8;-1/27
Formula for the equation.
Click here to see answer by macston(5194)

Question 948453: Complete the sequence 1/3;1/6;/1/9 ....
What is the formula to complete this?
Click here to see answer by macston(5194)

Question 948619: What is t in this question thank you!!!
Click here to see answer by reviewermath(1029)

Question 948628: In the card shop, there is a shelf with 25 cards in each row. There is a display rack with 45 cards. There are 220 cards altogether. How many rows are on the shelf?
Click here to see answer by macston(5194)

Question 948632: Eight tenths less than 6 times a certain number is equal to 0.4. What is the number? thanks to u if u help me
Click here to see answer by macston(5194)

Question 948455: complete the sequence -20;-18;-14;-8
formula for the problem
Click here to see answer by Edwin McCravy(20056)

Question 948066: Find the 89th term of the arithmetic sequence 20,10,0,...
Click here to see answer by Edwin McCravy(20056)

Question 948765: how do find the first 5 terms of the sequence t(1) = -3?
Click here to see answer by Fombitz(32388)

Question 6532: Please help me answer the following question: If y varies inversely as x and y=8 when x=4, find y when x=16
Click here to see answer by GrantJones(3)

Question 6532: Please help me answer the following question: If y varies inversely as x and y=8 when x=4, find y when x=16
Click here to see answer by Fombitz(32388)

Question 949224: I need an example on how to deal with a question like this one:
make a conjecture with regard to r^n as n->infinity
Click here to see answer by Fombitz(32388)

Question 949396: Find the next term of the following sequences; 12,16,21,27. .......?
Click here to see answer by Theo(13342)

Question 949425: three numbers are in the ratio of 1:3:5,if their sum is 189,what is the largest number?

Click here to see answer by stanbon(75887)

Question 949573: How can I find the next term and the 20th term in the following sequence?
5,1,4,2,3,3
Click here to see answer by josgarithmetic(39617)

Question 949573: How can I find the next term and the 20th term in the following sequence?
5,1,4,2,3,3
Click here to see answer by MathTherapy(10552)

Question 949659: 2, 16, 112, 672, 3360, 13440, ?

Click here to see answer by 428225(90)

Question 949669: The area of a triangle is 54 inches squared. Find the length of its sides if they form an arithmetic sequence.
Click here to see answer by Alan3354(69443)

Question 949937: The thirteen term of an arithmetic progression is136,the first term is 5times the constant difference,determine the 16 term.my email is ntsoanethandillon@live.com
Click here to see answer by josgarithmetic(39617)

Question 950032: Find the 29th term of the following sequence.
2, 13, 24, 35, . . .
Click here to see answer by erica65404(394)

Question 950032: Find the 29th term of the following sequence.
2, 13, 24, 35, . . .
Click here to see answer by MathTherapy(10552)

Question 950041: what is the sum of 6 yards and 7 feet

Click here to see answer by Fombitz(32388)

Question 950041: what is the sum of 6 yards and 7 feet

Click here to see answer by erica65404(394)

Question 950100: What is the pattern rule with the numbers 7, 21, 63, 189
Click here to see answer by MathLover1(20850)

Question 950411:
Click here to see answer by MathLover1(20850)

Question 950633: 5, 8, 14, 25, 50,...
Next sequence is what?
Click here to see answer by josgarithmetic(39617)

Question 950610: Gravity causes a body to fall 16ft during the 1st second, 48ft during the 2nd second, 80 ft in 3rd second, and so on. how far did the body fall during the 8th second and find the total distance it falls after 8 seconds?(SHOW YOUR COMPLETE SOLUTION)
Click here to see answer by ankor@dixie-net.com(22740)

Question 951108: What is the next number in the following sequence:
15, 50, 225, 1100
How do I find the answer as well?
Click here to see answer by stanbon(75887)

Question 951173: Find the three arithmetic means between 5 and 17.
Click here to see answer by stanbon(75887)

Question 951201: WRITING RULES: Write the next term in the sequence. Then write a rule for the nth term.
-5, 10, -15, 20, . . .
(I understand that the sequence is multiples of 5, but I don't understand how they got the negative for every other number) THANKS!! :D :3
Click here to see answer by jim_thompson5910(35256)

Question 951284: Find the next term in the sequence: 13 15 19 27 43 75
Click here to see answer by edjones(8007)

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