# I am a 3-digit number. My first digit is thrice my last digit. The sum of my last two digit is one less than my last digit

42,561 results, page 39
1. ## arithmetic

if sum of 20th term in an AP is equal to sum of 30th term,what is the sum of 50th term of the AP?

asked by amit on December 23, 2010
2. ## Math

A takes twice as much time as b and thrice as much time as c to finish a piece of work. Working together they can finish it in 2 days. A can do the work alone in. ??

asked by Medlin on August 29, 2017
3. ## Statistics

Find the probability that the sum is as stated when a pair of dice is rolled. A.4 or 11 or doubles B. 8,given that the sum is greater than 4. C.Even,given that the sum is greater than 4. A. 4 can be obtained by 1&3, 3&1 or 2&2. 11 can only be obtained by

asked by Mary on April 2, 2007
4. ## math

How would I do this? A sum of money is divided among three persons, X,Y,Z, kn the ratio 10:7:5. If Y gets \$14 more than Z, how much will X get and what is the total sum of money? There is no total sum so how do I find it?

asked by Alex on October 24, 2009
5. ## MATH

Explain how to find the sum positive three plus negative eight using chips, a number line, or the rules for adding integers. Give the answer with your explanation.

asked by le on May 23, 2012

If a man says he has three children who's ages are the product 36,the sum is the house number across the street and his oldest son loves chocolate cake,how old are the kids?

asked by Reid on October 14, 2008
7. ## MATH

The 2 digits in the mystery number have a sum of 6. you say this mystery number if you count by 3`s or count by 4`s. What is the mystery number?

asked by Kaidyn on November 10, 2014
8. ## Statistics

How would you do this problem The following is a list of ten measurements: 35,36,-38,-18,73,9,0.-67,-64,-59 10 over Sum under that is i=1 then sum-33xi how do I find the answer

asked by Mary Ann K on June 30, 2015
9. ## math

how long will it take of a sum of money invested at 80% simple interest the original sum. then solve it.

asked by williams on March 2, 2017
10. ## math

The second and sixth terms of an arithmetic sequence is 2:5 and their sum is 28. Find the sum of the first 10th term.

asked by Hitome Muramasa on August 4, 2016
11. ## Pre-Calc

Find the sum of the series 1 + 2 + 4 + 5 + 7 + 8 + 10 + 11 + ... + 299, which is the sum of the integers from 0 to 300, omitting the multiples of 3.

asked by Anonymous on May 13, 2016
12. ## math

Finding three geometrically numbers knowing that their sum is greater than 78 and 30 units exceeds the sum of the other two.

asked by Victor on June 10, 2014
13. ## Maths

The sum of the first and second terms of an geometry series is 9.the sum to infinit is 12.calculate the possible values of r.

asked by Andile on April 25, 2016
14. ## Algebra

How should two nonnegative numbers be chosen so that their sum is 1 and the sum of their squares is as large as possible? As small as possible?

15. ## Calculus

Two positive numbers have the property that their product is 2 and their sum is as small as possible. Find their sum.

asked by Dylan on June 10, 2016
16. ## College Algebra

Find a pair of positive integers such that the sum of the numbers is 20 and the sum of their reciprocals is 4/15.

asked by Fiona on September 20, 2016
17. ## Maths

A sum when reckoned at 15/2% per annum amount to RS 3920 in 3 years . Find the sum

asked by Haider on September 6, 2017
18. ## Calculus

Determine convergence of divergence. If convergent, find the sum. Sum (infinity, n = 0) (e/pi)^n

19. ## Maths

The sum of the first and third terms of a G.P.is 7/3 and the sum of the second and fourth term is 7/4.Fin the first and the common difference

asked by Efa on July 23, 2016

Find the sum of each infinite series, or state that the sum doesn'nt exist 1/7+5/14+25/28+

asked by Todd on December 16, 2012
21. ## 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

asked by Josiah on November 12, 2014
22. ## Math help quickly

Use the expressions for left and right sums and the table below. right-hand sum = summation (n above and i =1 on the bottom) f(ti) * change in t = f(t1) * change in t + f(t2) * change in t + .... + f (tn) * change in t left-hand sum = summation (n above

asked by Zoe on March 13, 2012
23. ## Maths

Sum of 4 terms in GP is 312 . Sum of 1st and 4th term is 252. Find the numbers.

asked by Max on February 23, 2017
24. ## Calculus

Evaluate using the sum of a finite geometric series: The sum of 2^i on the range from i = 1 to n. Please Help! I don't know how to make the exponent in 2^i = to i-1!

asked by Marie on January 10, 2015
25. ## Math (Number Theory)

the following two lines indicate another way to derive the formula for the sum of the first n integers by rearranging the terms in the sum. Fill in the details. 1+2+3+...+n=(1+n)+(2+(n-1))+(3+(n-2))+... =(1+n)+(1+n)+(1+n)+...

asked by Tiff on April 21, 2014
26. ## Combinatorics

If we roll 19 identical dices together at the same time and calculate the sum of the numbers rolled, how many different possible values of the sum can we get?

asked by Anonymous on May 24, 2015
27. ## MATHS

The compound interest on a certain sum for 5/2year at 5%per annum compounded annually is rs416.20.find the sum

asked by Vasif ansari on June 18, 2017
28. ## help maths partail sum

find the partial sum and the limiting sum of the following infinite series 1/4+1/10+4/18.... show step got no ideal at all

asked by dam on May 5, 2016
29. ## Arithemetic progression

the sum of 18term of an A.P is549 given the common difference is 3 find the 56th term and the sum of its 32term

asked by Anonymous on February 14, 2014
30. ## trig

8 sin 9x cos3x Rewrite the xpression as a sum or differnce using one of the product sum formulas Simplify if possible

asked by Rick on February 28, 2008
31. ## Math!

Find the sum of the seix even multiples of 18 starting from 36 six* Sum= 18 (2 + 4 + 6 + 8 + 10 + 12)= =18*2(1 +2 + 3 + 4 + 5 + 6) =36(21)= 36*20 + 36 = 720 + 36= 756 check my math.

asked by jake p on April 7, 2007
32. ## guess and check

there are 42 question on lindas test. sum of the questions are 2 point and sum were 3 points. she got a perfect score

asked by lisa on October 19, 2009
33. ## math

1. =SUM(A14,A8) 2. =C8+ 15 3. PMT function {PMT(D4D12,E4,-C4)} What will each of the above formulas do please see if I have the correct answer using excel or another spreadsheet document. 1. Is the sum between the two blocks listed the more blocks the more

asked by Anonymous on June 5, 2008

1. =SUM(A14,A8) 2. =C8+ 15 3. PMT function {PMT(D4D12,E4,-C4)} What will each of the above formulas do please see if I have the correct answer using excel or another spreadsheet document. 1. Is the sum between the two blocks listed the more blocks the more

asked by Shila on June 4, 2008
35. ## algebra

The total age of Friday and Fred is 68 years. Fred is thrice as old is Friday. How old is Fred?

asked by Mas on January 2, 2013
36. ## Math Help!

Write an expression in algebra for each of the following: 1. the number of cents in x dimes 2. the difference if four is subtracted from x 3. the sum of three consecutive integers 4. the product of three consecutive integers plz help i don't get these

asked by Ella on November 24, 2006
37. ## 8th grade math - system of equations

I'm not sure how to solve these. Solve using any method (substitution or elimination) 23. The sum of two numbers is 27. The larger number is three more than the smaller number. What are the two numbers? Ans: l = large; s = small l + s =27 and l = 3S 3s + s

asked by Alexis on April 27, 2016
38. ## Algebra

Classrooms on one side of the drama building are all numbered with consecutive even integers. If the first room, the room with the smallest classroom number, on this side of the building is numbered x, write an expression in x for the sum of the first five

asked by Jane on September 1, 2017
39. ## physics

A uniform pole 7m long and weighing 10kg is supported by a boy 2m from one end and a man 3m from the other end.At what point must a 20kg weight be attached so that the man would support thrice as much weight as the boy?

asked by dave on June 21, 2018
40. ## Math

A census taker came back to a house where a man lived with his three children. The census taker asked, "What is your house number?" The man replied, "The product of my children's ages is 72 and the sum of their ages is my house number." "But that's not

asked by Anonymous on December 2, 2007
41. ## CALC II

Determine the convergence of the following series using the nth-partial sum or geometric series formula. The sum of n=1 to inifitiy 1/(9n^2+3n-2) How do I start? I'm guessing I should factor out the denominator but whats after that? It is close to a

asked by Ace on June 18, 2007
42. ## operating system

Top part is a chart job 1 (10k) 20K 30k 50k jOB 2 (15k) 65k 75k jOB 3 (45K) 120K 200K jOB 4 ARRIVES REQUESTING A BLOCK OF 100k? A. CAN JOB 4 BE ACCOMMODATED WHY OR WHY NOT B. IF RELOCATION IS USED WHAT ARE THE CONTENTS OF THE RELOCATION REQISTERS FOR JOB 1

asked by Ryan on October 27, 2009
43. ## Math

K: 1) simplify: 1 - 1/2 + 1/4 - 1/8 + 1/16 - 1/32 2) Simplify: (1/2 - 1) - (1/3 - 1) + (1/4 -1) 3) In the proportion x^2 : 27 = 9 : x^3, what is x? 4) Between what two consecutive integers does cube root of -100 lie? 5) What is the area of a rectangle

asked by K on February 5, 2017
44. ## 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

asked by Viktoria on January 11, 2015
45. ## Maths

If the sum of two natural numbers is 77 and its gusa 7, then all the pairs of searches will be done How to write the sum?Steps send plz

asked by Dev on December 18, 2017
46. ## math

The sum of the first 12terms of an arithmetic progression is 135 while the sum of the next 8 terms is 210. Find the common difference

asked by Jay on August 25, 2015
47. ## Algebra

Write each repeating decimal as the sum-of two fractions. Find the sum and simplify. Verify . 0.75483 = 0.127 =

asked by Carmen on October 17, 2012
48. ## math

a sum of money invested at a simple interest rate R increases to 5/3 times the original sum after 5 years. The value for R is?

asked by Jay on August 24, 2015
49. ## Algebra 2

Find the sum of the first 12 terms of this sequence: 9,4.5,2.25,... I believe that the pattern is dividing the term by 2,and I keep getting 7.9956 for the sum, but that is incorrect. Anyone understand this?

asked by Nan on August 7, 2014
50. ## Maths

John, Amos and Peter shared the sum of #126 in the proportiom 1: 2: 4, find the sum of money each received.

asked by Salvtion c on July 30, 2014
51. ## math

To find three numbers in geometric progression, knowing that their sum is 78 and the highest 30 units exceeds the sum of the first and second term.

asked by Victor on June 10, 2014
52. ## maths

Five years ago father was thrice son's age. 10 years hence father will be twice sons age, find present age ( use two variables)

asked by manavi on July 16, 2015
53. ## Algebra

find the sum of the infinite geometric series 1/3+1/9+1/27 sum=a_1/1-r

asked by Keonn'a on September 28, 2018
54. ## math

Find the sum of the infinite geometric series below, or indicate that the sum does not exist. 15+6+12/5+24/25+...

asked by Elise on February 26, 2017
55. ## math

the sum of the first 8 terms of an Approval ia 12 and the the sum of the first 16 term is 56.find the first 3 terms3 of the Ap

asked by cliff on August 17, 2018
56. ## stast

a populstion of n=6 score has sum=12 and sum square= 54 what isthe value of ss for this population?

asked by mary on September 26, 2011
57. ## math

Find two positive numbers whose sum is 50 such that the sum of their squares is minimum?

asked by Anonymous on November 11, 2010
58. ## MATH

Look at the following expression, then factor the sum of terms as a product of the GCF and a sum. 42 + 24

asked by ZECH on November 17, 2017
59. ## Math

What is the sum when the upper bound of summation is infinite and n=1: (1-2)^n -10 *This is sigma by the way* so it's: ∞ Sum((1-2)^n - 10 n=1

asked by Steve on August 19, 2008
60. ## math

two dice are rolled. their sum is recorded. what is the probability that their sum is between five and ten?

asked by Donald on April 18, 2011
61. ## probability

two dice are tossed. find the probability that the sum is odd given that the sum is 5 or less

asked by Anonymous on June 12, 2012
62. ## math

If 28% of a sum is \$100.80, what is the sum? A. \$129.02 B. \$277.78 C. \$282.24 D. \$360.00 how can i do this

asked by k on May 28, 2009
63. ## Further Mathematics

The sum of the first three terms of a G.P is 7/8 of the sum to infinity .Find the common ratio.

asked by Akintunde on May 1, 2013
64. ## Maths

The sum of two numbers is 40.we need to find the no. ,If the sum of their reciprocal is 2/5 ( Quadratic equation)

asked by Tresa kurian on October 12, 2016
65. ## stast

a populstion of n=6 score has sum=12 and sum square= 54 what isthe value of ss for this population?

asked by mary on September 26, 2011
66. ## maths

Sum of first 30terms of an a.P. are equal to first 20 terms.show that the sum of first 50terms of the same ap is zero

asked by Anonymous on February 13, 2016
67. ## math word problems

lydi sold 4/5 of her candles to raise money for the band. she has 8 candles left. how many candles did lydia start with? a coin purse contains quarters, dimes, and nickes. there are the same number of dimes as nickesl and half as many quarters as dimes.

asked by marko on March 12, 2012
68. ## math

When two die are tossed,throwing a sum of 7 is three times more likely than throwing a sum of 11.if the probability of throwing a sum of 11 is 1:18,what is the probability of throwing a sum of 7?

asked by Cherie on May 2, 2012
69. ## statistics

An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two rolls are added together. This sum is recorded as the

asked by LJ on October 4, 2017
70. ## math

Explain how to find the sum positive five plus negative nineusing chips, a number line, or the rules for adding integers. Give the answer with your explanation

asked by drae on February 1, 2012
71. ## Finite Math

A pair of dice is rolled and the resulting sum is odd. The complement of this event would be the sum of that is a multiple of 3? True or false

asked by DeeDee on June 2, 2018
72. ## Algebra

Two questions I need help with. Find the indicated partial sum using the information given. 1. a3=4/9, a7=9/64, S6 Determine wheater the infinite geometric series has a finite sum 2. 6+ 3+ 3/2 + 3/4 +.... 3. -49 + (-7) + (- 1/7) +...

asked by Becca on April 8, 2013
73. ## Math

Calculate the sum from k=1 to infinity (or n) of (k^4)- (k-1)^4 It says that the solution is n^4, but I do not know why, I tried separating it in a telescoping sum, and expanding it, but I obtain at the end more values than expected. Please help

asked by Amy on November 13, 2018
74. ## Excel

Like obtaining the sum of squares in an area in Excel =sumsq(a1:g1) I would like an algorithm/module that will give me the sum of cubes. Can anyone help me? thankyouuuuuuuuuuu!

asked by John on February 24, 2011
75. ## math

a sum of money at certain rate of interest of amount to 8320 in 2years and 9685 in 3 and half years.find the sum ?

asked by mahe on October 16, 2018
76. ## Maths

If the sum of circumferences of two circles wirh radii r1 & r2 is equal to the circumference of a circle of radius r, then what is true 1 r1+ r2 = r or sum of their squares= r2

asked by Sanjay on December 26, 2017
77. ## college math

a pair of dice are rolled and the sum is recorded. What is the probability that the sum shown is 8 given that one die is showing 5? Is this done correctly? P(8|5)=1/6 x 1/6= 1/36 I really just want to make sure I have done this the right way!

asked by Lauren on November 18, 2009
78. ## Physics

The intensity due to a number of indipendent sound sources is the sum of the individual intensities. A) When four quadruplets cry simultaneously, how many decibels greater is the sound intensity level than when a single one cries? B) To increase the sound

asked by Amanda on March 29, 2008
79. ## Math

The sum to infinity of a G.P. is 16 and the sum of the first 4terms is 15. Find the first 4 terms. Find the sum to infinity of the following (if they converge). ?(a)4+4/3+4/3²+... (b)9+7+5+3+...(can't do, its an AP ?) (c)20-10+5-2.5+...a=20,r=-0.5

asked by Anonymous on April 21, 2008
80. ## physics

Which one of the following statements describes the condition(s) for which a rigid body is in equilibrium? Only internal forces can be present. The sum of the externally applied forces must be zero, and the sum of the externally applied torques must be

asked by shamma on April 26, 2014
81. ## Math

question 1: A series is: 1. any list of numbers 2. a summation of quantities whose positions are based upon the natural numbers 3. an arrangement of quantities whose positions are based upon the natural numbers. Which number is it? question 2: For the rule

asked by Nikki on January 26, 2010
82. ## mathematics

Question # 1: A series is: 1. any list of numbers 2. a summation of quantities whose positions are based upon the natural numbers 3. an arrangement of quantities whose positions are based upon the natural numbers. Which number is it? Question # 2: For the

asked by Nikki on January 27, 2010
83. ## Calc 2

Can you give me the step by step instructions on how to do this problem? I'm having difficulty understanding Riemann Sum. Let f(x) = 2/x a. Compute the Riemann sum for R4 using 4 subintervals and right endpoints for the function on the interval [1,5]. b.

asked by Bae on May 2, 2014
84. ## Math urgent

X,Y and Z can do a piece of work in 15 days. If X takes twice as much as Y and Z together and Y takes thrice as much as X and Z together, how long days will each take to finish a work.

asked by Rabin on September 5, 2016
85. ## Maths

X,Y and Z can do a piece of work in 15 days. If X takes twice as much as Y and Z together and Y takes thrice as much as X and Z together, how long days will each take to finish a work.

asked by Rabin on September 5, 2016
86. ## Algebra 2

Describe an infinite geometric series with a beginning value of 2 that converges to 10. What are the first four terms of the sequence? a{1} = first term of series                ∞    Infinite Sum = ∑  a{1} •

asked by Ke\$ha on March 31, 2016
87. ## math

secret riddle worksheet riddle: why did the teacher wear sunglasses? 1) different x's _ _ _ _ _ _ _ _ 2) monomialor sum of monomials P O L Y N O M I A L 3) set of data graphed as ordered pairs in a coordinate plane S C A T T E R P L O T 4) 2 solutions that

asked by confused gurl on May 7, 2007

Which sum will be irrational? (1 point) 3 + 2 start root 19 end root plus start fraction 7 over 2 end fraction Start Fraction 18 over 3 End Fraction plus Start Fraction 11 over ten thousand End Fraction. –6 + (–3.251) Which product will be rational? (1

asked by XenaGonzalez on August 25, 2015
89. ## ms sue math help please or anyone

Which sum will be irrational? (1 point) a.3 + 2 b.start root 19 end root plus start fraction 7 over 2 end fraction c Start Fraction 18 over 3 End Fraction plus Start Fraction 11 over ten thousand End Fraction. d. –6 + (–3.251) Which product will be

asked by Anonymous on September 2, 2015

Which sum will be irrational? (1 point) 3 + 2 start root 19 end root plus start fraction 7 over 2 end fraction Start Fraction 18 over 3 End Fraction plus Start Fraction 11 over ten thousand End Fraction. –6 + (–3.251) Which product will be rational? (1

asked by Anonymous on September 2, 2015
91. ## help please with math thanks

Which sum will be irrational? (1 point) a.3 + 2 b.start root 19 end root plus start fraction 7 over 2 end fraction c Start Fraction 18 over 3 End Fraction plus Start Fraction 11 over ten thousand End Fraction. d. –6 + (–3.251) Which product will be

asked by Anonymous on September 2, 2015
92. ## math help ms sue please

Which sum will be irrational? (1 point) 3 + 2 start root 19 end root plus start fraction 7 over 2 end fraction Start Fraction 18 over 3 End Fraction plus Start Fraction 11 over ten thousand End Fraction. –6 + (–3.251) Which product will be rational? (1

asked by Anonymous on September 2, 2015
93. ## MATH

Expand f(x)=ln (1+x/1-x) in a Taylor Series about x=0. You must express your answer using summation notation. ---This is what I tried to do--- So I was thinking of taking the derivative of ln(1+x/1-x) and get 2/x^2-1 And then use the identity 1/1-x= sum

asked by A. on December 4, 2012
94. ## Maths

The sum to infinity of a convergent is series is 243.The sum of the first five terms 242.Determine the values of the common ratio and the first term

asked by Nonkululeko on February 25, 2017
95. ## algebra

geometric dot pattern. 1+2+...+80 I'm not sure what the question is, to add up the numbers from 1 to 80? If it is this is an extremely old problem. If you use the progression o 1 dot____ ..o ..oo 3 dots___ .....o .....oo .....ooo .....oooo 4dots____ the

asked by jaznai on September 12, 2006
96. ## Calculus

Find two numbers whose sum is 10 for which the sum of their squares is a minimum.

asked by bobby on December 16, 2008
97. ## math

two numbers rolled can be added to get a sum. Find P(sum is even) is it 1/4 ?

asked by Anonymous on March 8, 2018
98. ## math

find two numbers whose sum is 25 and the sum of whose reciprocals is one sixth

asked by keeauna on August 26, 2008
99. ## math

the product of two whole numbers is 48. find their greatest possible sum. what is the least sum.?

asked by jem on July 30, 2015
100. ## Geometric progression

The sum of an infinite g.p. whose common ratio is numerically less the 1 is 32 and sum of the first two is 24.

asked by Rahul on October 13, 2016