Monday

October 5, 2015
Number of results: 194,511

**Fibonacci numbers**

I have three problems to answer dealing with Fibonacci numbers. I understand the first two, but would like for reassurrance that they are correct and lost on the last one and could use some help. Thank you. 1. Fibonacci numbers can not be used more than once. Find sums for ...
*October 2, 2011 by Jennifer*

**math**

kathyrn is thinking of four numbers from 1 through 9 with a sum of 18 find the numbers. this is the questions to the answer above.
*February 5, 2015 by JACKIE CHAN*

**Math: Geometric Progression**

Three numbers are in G.P. whose sum is 70. if the extremes be each multiplied by 4 and the means by 5, they will be in AP. find the numbers .
*September 13, 2015 by Aman*

**math**

Can anyone explain please,thank.the sum of 8numbers is x,and the sum of different set of nine numbers is 2x.the average of the smaller set of numbers is 1 more than the average of the larger set of numbers
*November 2, 2014 by julian*

**math**

which of these statements about prime and composite numbers is true? F)all prime numbers are odd. G)all prime numbers have three factors. H)all composite numbers are divisible by two. J)all composite numbers have more then two factors i thinks it (J) but im not sure
*March 25, 2010 by george*

**Math**

On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I multiply/add with the decimal on all numbers or only on that 1 number? EXAMPLE There is a triangle one side is 1.5 the base is 2 and the other side is 3 What ...
*January 19, 2012 by Connor*

**algebra**

The sum of two numbers is 24. Seven times the smaller number is the same as 5 times the larger number. Find the smaller number
*September 29, 2008 by katherine*

**maths**

Fill in the blanks- 1). the sum of two consecutive odd numbers is 84, the number are ________ and________ 2). A number multiplied by 6 and then reduced by 3 gives 69, the number is_______ 3). The number of boys is 3/2 the number of girls in class. the total strength is 40. the...
*June 15, 2012 by kratika *

**Math**

Minimizing Sum: Find two positive numbers whose sum is 100 and the sum of whose squares is a minimum.
*October 9, 2009 by David*

**Maths**

Please Could someone tell me what: 1. A square number is 2. A cube number is 3. A triangle number is Thank you Square numbers are the result of squaring an integer (IxI) Cube numbers are the result of the cube of an integer (IxIxI) A triangular number is a number such that the...
*April 23, 2007 by sean*

**Math**

The numbers 1-10 are placed on cards, and the cards are put in a hat. If two cards are drawn, in order, without replacement, what is the probability that a. both are composite? b. one number is even and the other is odd? c. one number is even and the other a prime?
*February 5, 2010 by Nicole*

**Statistics **

We are given this table which is Benford law for these questions they are used for filling your taxes: k= p(X=k) 1 0.301 2 0.176 3 0.125 4 0.097 5 0.079 6 0.067 7 0.058 8 0.051 9 0.046 1.) If you select two numbers randomly from any where on your taxes what is the probability ...
*March 10, 2013 by Anonymous*

**algebra1**

one number is 8 less than another .the quotient formed by dividing the higher number by the lower number is 15/11.Find the values of the two numbers
*April 23, 2013 by loulou*

**math,help,factoring**

i need help i don't know how to do the next step. factor by grouping x^3-3x^2+4x-12 so what i have so far is this =(x^3-3x^2)+(4x-12) =x(x^2-3x)+4(x-3) from here i don't know... and then this one is driving me insane this next one... Rewrite the middle term as the sum of two ...
*February 27, 2007 by jas20*

**Math**

how would you graph x>-2 and how would you solve the sum of two numbers is 3. their difference is 1. find the number.
*April 10, 2011 by Lulu*

**maths**

The difference between 2 positive numbers, x and y where x > y, is 7 and the sum of their squares is 137. By forming 2 equations in x and y, find the product of these 2 numbers.
*March 18, 2015 by katelyn*

**math**

the florida lottery is made up of the number 1-49. my mother observed that the winning numbers many times are prim numbers. a. list the prime numbers from 1-49 b. what is the probability of a prime number being picked randomly from the numbers 1-49? c. is the probability of ...
*February 1, 2010 by ssmomo*

**Simple Math**

Two eight-sided number cubes are thrown. Given that one of the cubes shows a five, what is the probability that the sum of the numbers that come up on the two cubes is six?
*January 31, 2013 by Jessica*

**math**

Find the prime factorization of each number,330 2.Find two factors of 28 with a sum of 11.7*4=28 =7+4=11 3.Find the greatest common factor for each of the following groups of numbers 36, 72, and 144 answer36, 72, and 144
*September 2, 2009 by p*

**algebra**

Look for a pattern in the expressions shown below. Use the pattern to write an expression for the sum of the whole numbers from 1 to n. Then find the sum of the whole numbers from 1 to 50. 1+2= 23/2 1+2+3= 34/2 1+2+3+4= 45/2
*September 8, 2013 by Anonymous *

**Algebra (need help ASAP!!!!)**

I didn't get how to do the problem. In my book it says to choose a variable and write an absolute value inequality that represents each set of numbers. Here are the problems I had-- all real numbers less than 2 units from 0 all real numbers less than 1 unit from -4 I need to ...
*December 14, 2006 by Emily*

**Math**

Use each of the numbers 7, 8, 9, 10, and 11 once and only once to fill in the circles so that the sum of the numbers in the three horizontal circles equals the sum of the numbers in the three vertical circles. OOO O 0 Of the three possible solutions, which numbers can be used ...
*October 19, 2009 by Kelly*

**Math**

the sum of 5 consecutive whole numbers is 2005. what is the sum of all the digits of these 5 numbers
*March 28, 2013 by Mo*

**math**

the product of two numbers is 50. when you divide the larger number by the smaller number you get 2. what are the two numbers?
*October 26, 2009 by Anonymous*

**Math**

Use each of the numbers 7, 8, 9, 10, and 11 once and only once to fill in the circles so that the sum of the numbers in the three horizontal circles equals the sum of the numbers in the three vertical circles. Of the three possible solutions, which numbers can be used in the ...
*October 21, 2009 by Kelly*

**math**

The sum of two numbers is 38. Their difference is 12. What are the two numbers?
*January 25, 2008 by Kara*

**Math**

The sum of two numbers is 38. Their difference is 12. What are the two numbers?
*January 25, 2008 by carly*

**math**

sum of two numbers is 42.Their difference is 6.What are the two numbers?
*January 31, 2008 by gavin*

**Math**

The sum of two numbers is 35 and their difference is 7. What are the two numbers?
*March 1, 2014 by Larry*

**math**

Tne union of the set of rational numbers and the set of irrational numbers is 1 {whole number} 2 {real numbers} 3 {counting numbers} 4 {}
*May 5, 2009 by Anonymous*

**math 1**

Pls solve this using one variable: The difference bet 2 numbers is 3. The sum of thrice the smaller and the larger is 35. Find the original number.
*November 14, 2012 by MNHS*

**math**

justify that15 is the sum of eachrow of a 3X3 magic square using the number 0-9. Find the sume of all the numbers. What is the of eachrow in a 4X4 magic square that uses the numbers 1-16.
*April 22, 2010 by Mark*

**Math **

Nine consecutive odd whole numbers sum to 243. Find the sum if the first and last whole numbers in this nine-addend ser.
*December 17, 2013 by Kristen*

**math**

10 numbers have an average of 12 whereas 5 other numbers have an average of 36. find the average of the 15 numbers
*October 28, 2013 by kellyann*

**Math**

What two numbers when multiplied = -16 and when added = 10, also one number is negative the other is positive in this answer.
*March 5, 2012 by Jquez*

**math,algebra**

can someone explain to me how to solve for the following: Directions:Find the GCF of 6,18, and 30 well to get the answer you need to find the biggest comon factor that all of the numbers can evenly go into. like with 3, 6, 9 you would take 9 and write/type out several factors ...
*December 14, 2006 by Jasmine20*

**Fourth grade math**

What is the sum of the six three-digit numbers that have the digits 1, 2, and 3? What is the sum in each column? Why is the sum in each column the same? my mom doesn't know how to help me with this one?
*August 30, 2013 by Andrew*

**math**

What is findind a five number summary of each ser of numbers 7,7,5,4,1,9,8,8,8,5,2 and range of the same numbers please I only see one set of numbers. Why do you refer to "each" set? What five-number summary are you refering to? Mean, median, mode and what else? The range of ...
*June 12, 2007 by isaiah*

**need help in math,**

Translate to a system of equations and solve using the addition method. The sum of two numbers is88. The difference is 22.Find the numbers? My answer: I started but i think that i am wrong. x + y = 88 y = -x +88 y = -1x + 88 now once i substituted x -1x + 88 = 88 see i don't ...
*January 13, 2007 by jasmine20*

**Math**

What 2 digit number has 2 one digit factors that have a sum of 16 and a difference of 2?What is it? the numbers are 9 and 7
*October 25, 2006 by Mary-Ann*

**math**

Suppose you are comparing two numbers that are greater than 1,000. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain.
*August 27, 2012 by Anonymous*

**Math **

Suppose you are comparing two numbers that are greater than 1,000. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain.
*September 5, 2013 by Felix *

**Alegbra**

the smaller of two numbers is 18 less than the larger number. If 5 timnes the larger number esxceeds four times the smaller by 100. Find the numbers.
*September 10, 2015 by Kalee*

**math**

List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons ages. Show your work listed by name and age. Make ...
*January 25, 2011 by melvin*

**math**

a 3digit, and 1digit number have a sum of 147, a different of 133 and a product of 980. find the numbers, and then give their quatient
*March 5, 2009 by sam*

**Algebra 1- Please Help !!!!!!!!:D**

When two numbers are added together, the result is 45.Twice the greater number is six more than five times the lesser number. What are the numbers.
*October 16, 2010 by 111*

**MATH**

A set of numbers has the triple-sum property (or TSP) if there exist three numbers in the set whose sum is also in the set. [Repetitions are allowed.] For example, the set U = {2, 3, 7} has TSP since 2 + 2 + 3 = 7, while V = {2, 3, 10} fails to have TSP. (a) Suppose the set...
*April 15, 2010 by DAVID*

**AP Statistics (math)**

Find a set of numbers that will satisfy the following conditions: - the median of a set of 20 numbers is 24. - the range is 42. - to the nearest whole number the mean is 24. - no more than three numbers are the same.
*August 27, 2010 by Ariellen*

**math**

The product of two numbers is 50. If you divide the larger number by the smaller number you get 2. What are the numbers?
*July 19, 2009 by chandice*

**math**

The product of two numbers is 50. If you divide the larger number by the smaller number you get 2. What are the numbers?
*February 13, 2011 by anonymous*

**mathematics**

The numbers 1,2,,17 are divided into 5 disjoint sets. One set has 5 elements, one set has 4 elements, two sets have 3 elements and the last set contains the 2 remaining elements. Two players each choose a number from 1 to 17 at random. The probability they choose numbers from...
*February 6, 2013 by Anonymous1*

**maths**

The numbers 1,2,,17 are divided into 5 disjoint sets. One set has 5 elements, one set has 4 elements, two sets have 3 elements and the last set contains the 2 remaining elements. Two players each choose a number from 1 to 17 at random. The probability they choose numbers from...
*February 8, 2013 by Anonymous33*

**Math**

List the common multiples from 1 to 100 for each pair of numbers. Then find the least common multiple for each pair. 8 and 12, 3 and 15, 7 and 11, 9 and 10, 24 and 36, 20 and 25, 42 and 14, 30 and 12 Then find pairs of numbers for which the least common multiple equals the ...
*September 18, 2012 by Gracie*

**Probability Pease helpp**

Tina randomly selects two distinct numbers from the set {1, 2, 3, 4, 5}, and Sergio randomly selects a number from the set {1, 2, . . . , 10}. The probability that Sergios number is larger than the sum of the two numbers chosen by Tina is ?
*November 24, 2011 by maria*

** Math**

How can you order three whole numbers with different numbers of digits without comparing the digits? Give an example. I think that I can use the same number with different place numbers like: 4, 44, 444; I dont have to compare numbers. Is this right? If not please help me.( ...
*August 24, 2008 by Nehemiah*

**Math**

An experiment consists of rolling two fair number cubes. What is the probability that the sum of the two numbers will be 4?
*March 26, 2015 by z.m*

**math**

Hi, for the question, "the sum of two numbers is equal to a third number(x+y=z). The sum of twice the first, three times the second, and twice the third is 7(2x+3y+2x=7). The third number is 3 more than the first(3+z=x), have I set the equations right? I got different answers ...
*April 8, 2010 by Me*

**Math**

Identify all sets to which the number 3 belongs A. Whole numbers, integers, rational numbers B. Rational numbers C. Integers, rational numbers D. Even numbers, whole numbers, integers, rational numbers I THINK IT'S A
*December 12, 2012 by Frances*

**math**

I am thinking of whole numbers. when I add them, their sum is 123. When I subtract the three lesser number from greater number, their difference is 45? what are my numbers? i am having trouble going step by step with this. i added 61+62=123. i think this is wrong please help ...
*October 15, 2009 by tlyler R*

**math**

Make the sum of the numbers across equal the sum of the numbers down. 7 5 1 9 3
*January 13, 2015 by daishon*

**math**

two numbers differ by 11 and 1/3rd of the greater exceeds 1/4th of the other by 7 . find the number ???
*October 1, 2012 by TUHITUHI*

**math**

The LCM of these three numbers is 60. The GCF is 1. If you add the numbers, the sum is 15. Select the three numbers from the following options: 2, 6, 5, 8, 4 Show your work!
*October 17, 2012 by Jordan*

**Algebra 1**

Which statement about real numbers is true? Across the heading says: real numbers. The first big circle says: rational numbers The second biggest circle inside rational numbers says: integers The third circle within the rational numbers says: whole numbers. Then there is a ...
*January 23, 2014 by Cassie*

**Math**

The difference between two numbers is 45. Three times the larger number less five times the smaller number equals 75. What are the two numbers?
*July 21, 2015 by serena*

**maths**

the sum of N positive integers is 19. what is the maximum possible product of these N numbers? thx. Nice problem. Let's look at some cases 1. N=2 clearly our only logical choices are 9,10 for a product of 90 It should be obvious that the numbers should be "centrally" ...
*July 22, 2007 by Jarin*

**Math.**

On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I multiply/add with the decimal on all numbers or only on that 1 number? EXAMPLE There is a triangle one side is 1.5 the base is 2 and the other side is 3 What ...
*January 19, 2012 by Connor*

**Math**

A teacher asked studets to name numbers. After each number, the teacher responded using a certain rule. This table shows the numbers named by the students and the teacher's responses Students input 1,2,3,4,5,6,7 Teachers response 3,3,5,4,4,3,5 One of the things you should be ...
*September 27, 2006 by Tye*

**algebra**

List all the numbers from the given set that are, a.natural numbers b.whole numbers c.integers d.rational numbers, e.irrational numbers {-9,-4/5,0,0.25,3,9.2,100}
*September 1, 2009 by Liza*

**math**

list all numbers from the given set {-9,-4/5,0,0.25,/3,9.2,/100} that are a) whole numbers b) natural numbers c) intergers d) rational numbers e) irrational numbers.
*July 31, 2013 by TINDO*

**Math 3rd grade**

Suppose you are comparing two numbers that are greater than 100. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain
*October 4, 2013 by Patty*

**AiMS MATH**

-5 Is A Member Of Which Subset Of Real Numbers. a) natural numbers b) whole numbers c) intergers d) rational numbers e) irrational numbers
*January 20, 2011 by Angel*

**Programming**

Write a pseudocode for the following scenario. You are to continue inputting numbers which may be either positive or negetive from a keyboard until a number of zero is entered. Count the number of positive numbers entered. This sum must be printed out at the end of the program.
*March 28, 2012 by Themba*

**maths probability**

In one version of the game Keno the house has a pot containing 80 balls numbered 1 through 80,.the house then selects 20 of the 80 numbers at random . The house randomly selects 20 numbers from the counting numbers 1-80 .In the variation called 6-spot keno, the player pays 60 ...
*August 28, 2012 by adiba*

**MATHS!!!Please HELP..:'(**

What is the sum of all integer values of n satisfying 1≤n≤100, such that (n^2)−1 is a product of exactly two distinct prime numbers? Details and assumptions The number 12=223 is the product of 3 (not necessarily distinct) prime numbers.
*March 29, 2013 by Oian*

**math**

In how many ways can you express the number 2003 as a sum of two prime numbers? A) 1 B) 2 C) 3 D) 4
*September 23, 2012 by ANON*

**Math (fibonacci**

A sequence of numbers is called a Fibonacci-type sequence if each number (after for the first two) is the sum of the two numbers which precede it. For example, 1, 1, 2, 3, 5, 8 ... is a Fibonacci- type sequence. If 1985, x, y, 200 are four consecutive terms in a Fibonacci-type...
*August 8, 2014 by Lexmo*

**math**

smallest of two triangular numbers whose sum and difference are also triangular numbers My guess would be 15. 21 - 15 = 6 and 15 + 21 = 36.
*May 25, 2007 by Amanda*

**math**

The sum of two numbers is 15. Three times the greater subtracted from seven times the lesser equals 15. What are the numbers?
*September 23, 2010 by Amy*

**Probability PLEASE HELP**

Tina randomly selects two distinct numbers from the set {1, 2, 3, 4, 5}, and Sergio randomly selects a number from the set {1, 2, . . . , 10}. The probability that Sergios number is larger than the sum of the two numbers chosen by Tina is ?
*November 24, 2011 by maria*

**algebra**

The sum of a number and its reciprocal is 29/10 Find the numbers?
*November 6, 2014 by anonymous*

**math problem**

My ID number is quite remarkable.Its a 9 digit number with the digits 1-9 appearing only once. The entire 9 digit nuymber is divisible by 9. If you remove the last digit, the remaining 8 digit number is divisible by 8. If you remove the last digit again, you are left with a 7 ...
*September 30, 2006 by Samantha*

**Advanced algebra**

In which distributions does the variable, X, have a binomial distribution? (Choose all that are correct) ~When a 6-sided number cube is rolled 3 times, X is the number of 2s rolled. ~When a 6-sided number cube is rolled, X is the number of times rolled before a 2 appears. ~...
*September 5, 2014 by Alex*

**Advanced algebra**

In which distributions does the variable, X, have a binomial distribution? (Choose all that are correct) When a 6-sided number cube is rolled 3 times, X is the number of 2s rolled. When a 6-sided number cube is rolled, X is the number of times rolled before a 2 appears. When a...
*September 5, 2014 by Alex*

**math**

please help! find 3 consective numbers with a sum of 12. find three consective numbers with a sum of 45
*November 20, 2007 by jake*

**math**

what do we call the numbers that cannot be arranged into 2-row arrays? I think this is the 3rd time I've seen this question posed. I'm not aware of any special name for arrays with two rows, so I'd sure be interested to see what the quesioner has in mind here. As for the ...
*August 30, 2006 by Kristy*

**math**

Is there a formula to sum the digits between two numbers? eg. 1 to 20 = 1+2+3+4+5+6+7+8+9+1+0+1+1+1+2+1+3+1+4+1+5+1+6+1+7+1+8+1+9+2+0 = ?? I am looking for the numbers 1 to 2008 so I really need a formula! Please help, thank you. Jane
*May 12, 2009 by Jane*

**Geometry**

Below is a worksheet I have to do for my geometry class. I am not sure about the answers I have given and I have no clue about the ones not answered. Any help will be much appreciated and thank you in advance. A. Determine the number of triangulations for a hexagon. 5 B. How ...
*October 24, 2012 by Angie*

**geometry**

in the proportion 2/8=8/32, which numbers is the geometric mean of the other two numbers?
*June 17, 2014 by alice*

**math**

The smaller of two triangular numbers whose sum and difference are also triangular numbers?
*September 24, 2007 by Ben*

**math **

Find three mixed numbers so that the sum is 18 and the difference between the greatest number and the least number is 5 1/5.
*March 19, 2015 by susan*

**algebra**

. A rich merchant had collected many gold coins. He did not want anybody to know about them. One day, his wife asked, "How many gold coins do you have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 25 times the difference ...
*September 9, 2015 by Samantha*

**Math**

What numbers can be expressed as an alternating-sum of an increasing sequence of powers of 2 ? To form such a sum, choose a subset of the sequence 1, 2, 4, 8, 16, 32, 64, . . . (these are the powers of 2). List the numbers in that subset in increasing order (no repetitions ...
*April 15, 2010 by CSI*

**Math 130 **

Sum the first two odd numbers, then the first three, the first four, and so on. From these observations could you guess the sum of the first 100 odd numbers?
*February 27, 2013 by Enis *

**Algebra**

5 times the least of three consecutive odd numbers is 35 more than twice the sum of the greater two. What is the sum of the three consecutive odd numbers?
*September 22, 2013 by Shaun*

**Math**

5 times the least of three consecutive odd numbers is 35 more than twice the sum of the greater two. What is the sum of the three consecutive odd numbers?
*September 22, 2013 by Shaun*

**Math**

How do I set this up and how do I solve: The sum of two numbers is 20 The difference between 3 times the larger number and twice the smaller number is 40. What is the larger number?
*February 12, 2012 by Jane*

**Math**

Most natural numbers can be expressed as a sum of two or ore consecutive positive intergers. Find all natural numbers between 1,000 and 10,000 which cannot be expressed as a sum of tow or more consecutive positive intergers.
*March 23, 2009 by Danette*

**algebra**

A rich merchant had collected many gold coins. He did not want anybody to know about them. One day, his wife asked, "How many gold coins do you have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 25 times the difference ...
*September 9, 2015 by Samantha*

**Math**

the only perfect number of the form x(n) + y(n) A perfect number is an integer that is equal to the sum of its positive divisors (not including itself). Therefore, 6 is a perfect number, since its positive divisors are 1, 2, and 3 and 1+2+3 = 6. 28, 496, and 8128 are also ...
*November 19, 2006 by Mike*

**math**

Which statement is true? A. All irrational numbers are also rational numbers. B. Half of the irrational numbers are also rational numbers. C. One-third of the irrational numbers are also rational numbers D. Irrational numbers cannot be classified as rational numbers. Is the ...
*September 26, 2014 by Anonymous*