Thursday

June 30, 2016
Number of results: 211,866

**algebra**

The sum of the first n counting numbers 1 + 2 + 3 + 4 + 5 ... + n is given by S = n/2(1 + n). a) Find the sum of the numbers 14 to 40 inclusive Answer is 729. But i don't get why. Someone explain what the qestion means by "inclusive" please ><!
*February 8, 2008 by Annie*

**algebra**

The sum of the swuares of the first n counting numbers: 1² + 2² + 3² + 4² + 5² + 6² + ... +n² is given by the formula S = n(n+1)(2n+1) ------------ 6 Find the sum of the squares of all the counting numbers between 15 and 35. - answer is 12445; how do you do this question ? >...
*February 8, 2008 by jadacess*

**math question**

-The product of all the positive factors of 20 ( including 20) can be written2^x.5^y. Find x+y. -The number 18 is equal to 2 times the sum of its digits: 1+8=9. 2x9=18. There are 4 two digit numbers that are equal to 4 times the sum of their digitss . Find 3 of those 4.
*March 13, 2013 by Sony*

**Math**

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? So the first two odd numbers are
*March 9, 2013 by Dawn*

**algebra 2**

The larger of two numbers in 8 times the smaller. The difference between them is 42. Find the numbers. Write the equations. Find the numbers
*March 14, 2012 by lea*

**math**

find two numbers in the ratio of 2 to 5 that have a sum of 119.
*May 28, 2013 by bob*

**MATH**

A four by four grid of unit squares contains squares of various sizes (1 by 1 through 4 by 4), each of which are formed entirely from squares in the grid. In each of the 16 unit squares, write the number of squares that contain it. For instance, the middle numbers in the top ...
*August 15, 2013 by mathemagiacian*

**Math 0098**

The sum of three numbers is 113 . The second number is 3 times the third. The first number is 7 less than the third . What are the numbers?
*March 29, 2013 by Anonymous*

**5th grade math**

the sum of two numbers is 34. their difference is 18. what are the two numbers?
*September 30, 2008 by Andrew*

**math**

the sum of two decimal numbers is 5.3. their difference is 1.7 and there product is 6.3 what are the two numbers?
*December 13, 2009 by jalen*

**math**

the sum of two decimal numbers is 3.9. their difference is 0.9, and their poduct is 3.6 what are these two numbers?
*December 14, 2010 by kate*

**math**

sven is thinking of two numbers. the sum is 12. the diffrence is 4. what are the two numbers?
*August 18, 2012 by peace*

**math**

The sum of two decimal numbers is 5.3. Their differences is 1.7, and their product is 6.3. what are the two numbers?
*September 26, 2012 by lily*

**math**

Sven is thinking if two numbers. The sum is 12 . The difference is 4. What are the two numbers
*March 7, 2013 by shana*

**math**

The sum of two decimal numbers is 3.9 Their difference is 0.9,and their product is 3.6 What are the two numbers?
*September 24, 2013 by Joel*

**home school**

the sum of two numbers is 42. their product is 185. what are the two numbers
*November 20, 2013 by jamal*

**math**

use a flow map to help you figure out the missing number. be sure to use arrows to show the direction of your map, and make sure you have a title. clue 1 i am a multiple of 3 clue 2 i am between the numbers 15 and 36 clue 3 when you add my two numbers together you get th sum ...
*August 18, 2010 by keith*

**math**

Find: Two numbers whose sum -10 and whose product is 5. ;;; x+y = -10 x= -10-y xy=5 (-10-y)y=5 -10y-y^2 = 5 -y^2-10y-5=0 y= -9.47213595499958 and y= -0.52786404500042 Two numbers whose sum is 1 and whose product is 1. ;;; y= (-1+ sqrt(-3))/-2 y= (-1 - sqrt(-3))/-2 Find the ...
*February 1, 2016 by John*

**MATH!**

The sum of two prime numbers is the prime number 89,563. Find the smaller of the two addends. I attempted the problem but I'm not sure if it is right. 89,561 is a prime number and so is 2. So is the answer 2?
*May 6, 2011 by Lee*

**Math**

Two different 6-digit numbers each have three 8's and and three 7's.No two digits next to each other are the same.write the numbers in standard form
*September 24, 2014 by Jessel*

**Math**

How many 2-digit numbers have two different even numbers and odd numbers?
*August 21, 2014 by Cassandra Ignacio*

**Math**

i^6 = (i^2)^3 = (-1)^3 = -1 The square, not the square root of -1 is 1. :) B.t.w., can you prove that -1 times -1 is 1? Hint, try to prove first that for any number X: -1 times X equals -X How do you find the square root of -1? The square of any real number is alwayspositive. ...
*November 15, 2006 by Count Iblis*

**math**

the sum of two numbers is 90.three times the larger decreased by twice the smaller is 160.what are the numbers?
*March 13, 2012 by rumbie*

**math**

there was an alphabet kingdom and a number kingdom. One day, the king of numbers decided to send two spies to alphabet kingdom. The king chose two numbers that would always stick together to go into the alphabet kingdom. Get the two numbers, add them and times them by six. 1 ...
*June 6, 2007 by Christina Kwon*

**Math**

The larger of two numbers is twice the smaller number. The sum of their reciprocals is 1. Find the larger number.
*November 22, 2013 by Francis Rhoen*

**Algebra (Integer Problem)**

The sum of three positive numbers is 33. The second number is 3 greater than the first and the third is 4 times the first. Find the three numbers.
*February 13, 2014 by Nikko*

**5th grade**

use a flow map to help you figure out the missing number. be sure to use arrows to show the direction of your map, and make sure you have a title. clue 1 i am a multiple of 3 clue 2 i am between the numbers 15 and 36 clue 3 when you add my two numbers together you get th sum ...
*August 18, 2010 by keith*

**math**

One number is eight more than twice another. If their sum is decreased by nine, the result is fourteen. Find the numbers.
*December 17, 2011 by latesha*

**D.L.Perez elem. School**

Two different 6-digit numbers each have three 8's and three 7's.No two digits next to each other are the same.write the numbers in standard form.
*September 24, 2014 by Jessel*

**9th grade**

Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above my answer a)rational numbers
*September 20, 2010 by Ross*

**MATH**

The triangular numbers are the numbers 1, 3, 6, 10, 15, . . .; the square numbers are the numbers 1, 4, 9, 16, 25, . . . The pentagonal numbers 1, 5, 12, 22, 35, . . .. The geometrical language is justified by the following diagrams: a. What are the first five hexagonal ...
*April 2, 2010 by Brian*

**Math**

1. Find the sum of the first 21 terms of the arithmetic sequence given by the formula an = n+5 I see that I have to plug in numbers and get the terms...but i'm sure there's a shorter way to do this instead of plugging in 21 numbers. 2. The following infinite geometric series ...
*June 7, 2013 by mysterychicken*

**maths**

can you replace the stars with figures **** x 3 ______ ***** the whole calculation uses each of the digits 0-9 once and once only the 4 figure number contains three consecutive numbers which are not in order. the third digit is the sum of 2 of the consecutive numbers the 1st,...
*September 21, 2008 by john*

**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 ...
*July 20, 2011 by trenda*

**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 ...
*August 16, 2011 by leslie*

**math**

the sum of two numbers is 51. Twice the first plus 4 times the second is 128. What are the numbers? Show your work.
*January 19, 2010 by allan*

**Finite Math**

A pair of dice is cast. What is the probability that the sum of the numbers landing upwards is 8 if it is known that the two numbers are different?
*March 19, 2012 by Anonymous*

**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 one number is even and the other a prime? I know there are 4 primes-2,3,5,7 and 5 even numbers 2,4,6,8,10 not sure how to ...
*November 30, 2010 by m*

**Math**

A magic square is a square of numbers with each row, column, and diagonal of the square adding up to the same sum, called the magic sum. Arrange the numbers, -1,0,1,2,3,4,5,6,and 7 into a magic square. How does the average of these numbers compare with the magic sum? --Please ...
*September 10, 2007 by Michelle*

**math**

what two numbers have a quotient of 9 and a difference of 56? ---one of the numbers has to be 63
*February 11, 2009 by Hunter*

**math**

the sum of two numbers is 28. their difference is 2. what are the numbers?
*October 24, 2007 by mecca*

**Algebra**

The sum of two numbers is 68 and the difference is 10. What are the numbers?
*April 26, 2011 by Kendra*

**algebra**

The sum of two numbers is 57 and the difference is 23 . What are the numbers?
*March 9, 2013 by Anonymous*

**algebra**

the sum of two numbers is 48 and the difference is 22. What are the numbers?
*November 9, 2015 by bubba*

**math**

The sum of three numbers is 89 . The third number is 3 times the second. The first number is 9 more than the second. What are the numbers?
*June 5, 2016 by Zoey *

**Math**

1. Find two numbers whose sum is 84 and one number is 18 more than the other. Answer: 84-18=2x x=33 84+18=2x x=51 2. A board 125 inches long is to be cut into two equal parts so that one part is 4 inches less than twice as long as the other part. Find the length of each part. ...
*February 20, 2014 by Finding and solving equations*

**math**

How do I find the numbers adding up to 58 if one of those two numbers is greater by 24?
*October 22, 2012 by Gene*

**math**

The Florida Lottery is made up of the numbers 1-49. My mother has observed that the winning numbers many times are prime numbers. 1.List the prime numbers from 1-49: 2.What is the probability of a prime number being picked randomly from the numbers 1-49? 3.Is the probability ...
*January 17, 2010 by Anonymous*

**math**

The Florida Lottery is made up of the numbers 1-49. My mother has observed that the winning numbers many times are prime numbers. 1.List the prime numbers from 1-49: 2.What is the probability of a prime number being picked randomly from the numbers 1-49? 3.Is the probability ...
*January 17, 2010 by Anonymous*

**Algebra**

Need help plz. Don't really get this "reversing the digits" What is this really called in math language? Prob:Find the product of 32 and 46. Now reverse the digits and find the product of 23 an 64. The products are the same. Does this happen with any pair of two digit numbers...
*July 7, 2010 by Katti*

**Math**

I have three more questions I do not understand. 1. Two points (-1,1) and (3,-2) are graphed on a coordinate plane. What is the shortest distance between the points? A. 3 B. 4 C. 5 D. 7 I have no idea how to do this. 2. Which expression represents the nth term in the sequence ...
*April 18, 2011 by Sammy*

**math**

The sum of two numbers is 43. If the larger number is ten more than twice the smaller number, what is the smallest number?
*February 17, 2016 by raymraymond*

**Math**

The number of blocks has nine in the ones place the numbers in the hundreds place is one more than the number in the tens place there are two numbers equal 11 how many block are there
*April 28, 2016 by Andrew *

**math**

The product of two numbers is 1512 if each of the number is halved , what is the sum of the two new number?
*January 20, 2016 by chev*

**algebra !**

i need hepl on adding and subtacting rational numbers like -7over12+5 over 6 When adding rational numbers we need a common denominator. We have -7/12 + 5/6 What is the least common multiple of 12 and 6? After you find that make sure both fractions are expressed as a ratio of ...
*September 19, 2006 by makhissa*

**math10**

If you randomly choose two different numbers from 1 to 10, what is the probability that one number is one more than the other?
*January 9, 2016 by manilen*

**math**

the sum of two consecutive numbersis 205. whatare two numbers? (hint:let n represent the first number. then n + 1 represents the second number.
*November 1, 2007 by breeawna*

**math**

the sum of two numbers is 42. their product is 185. what are the two numbers?
*November 14, 2012 by Anonymous*

**math**

there are two numbers that are 3 times as far from 19 as they are from 11. the sum of the two numbers is?
*January 24, 2013 by claire*

**Algebra 2**

The sum of two numbers s 96, and their difference is 17. What is the larger of these two numbers ?
*November 5, 2014 by Bree*

**math**

The sum of two numbers is 30. Their product is 176. What are two numbers?
*January 27, 2016 by Anonymous*

**Math**

Two numbers are in the ratio 20:12. Their sum is 160. What are the two numbers?
*February 16, 2016 by Sidney*

**math**

The sum of three different numbers is 18. If every number is a prime number, what are the three numbers? 11+5+2 is it correct
*November 3, 2014 by Lakshmi*

**Algebra**

I am stuck, pleas help, i have the example but I am still not able to figure it out... Find the value of X...5/x+6+2/x^2+7x+6=3/X+1 Find the value of X...2/5=x-2/20 First, get the X terms on one side of the equation and the numbers on the other. 2/5=X-2/20 2/5+2/20 = X Change ...
*May 23, 2007 by Helpless Again*

**Math**

The difference between the two numbers is 14. The LCM of the two numbers is 16. Find the two numbers
*November 13, 2012 by Logan*

**math, algebra**

Problem: A formula for a football player's rushing average r with a total of y yards rushed in n carries of the ball is r=y/n. Solve for n. I have no other information this is how its in the book how do i even solve for n if theres no numbers. You don't use numbers. It asks to...
*December 12, 2006 by jasmine20*

**Math**

Hot numbers in a lottery are numbers that keep coming up. Cold numbers are numbers that have not "hit" in awhile.Some people select hot numbers or cold numbers when buying a ticket. Using probability,explain whether this makes sense. Please answer this question. Thanks
*January 29, 2011 by Melea*

**Grade 9 Algebra Question 3 (LAST)**

PASCAL’S TRIANGLE For Exercises 5 and 6, use the following information. Blaise Pascal is known for a special triangular arrangement of numbers, calledPascal’s Triangle.. Each number insuccessive rows of the triangle is created by adding the two numbers in the row above the ...
*October 6, 2011 by Jab*

**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 =27 4s =27 4s/4 = 27...
*April 27, 2016 by Alexis*

**multplication**

When multiplying is there a rule stating that the numbers being multiplied can't have the same two last numbers as the product or the numbers can't end with the same numbers that were multiplied?
*October 12, 2012 by james*

**math**

the sum of two number is 41 .one number is one less than twice the other find the larger of the two number a- 13 b- 14 c- 21 d- 27 e- 41
*August 27, 2010 by anonymous1*

**Math**

A book called The Penguin Dictionary of Curious and Interesting Numbers by David Wells (1986) contains fascinating numbers and their properties. One of which is the only 3-digit numbers that are prime and all rearrangements of their digit are also prime are 113,119, and 337. ...
*November 30, 2008 by Kris*

**math**

Two numbers are such that twice the greater number exceeds twice the smaller one by 18 and 1/3 of the smaller and 1/5 of the greater numbers are together 21.The numbers are:
*November 12, 2015 by Waqas ahmad*

**math**

The numbers 1 to 100 are placed in a box. You randomly select 15 numbers without looking. What is the probability that two pairs out of these 15 numbers will have the same difference?
*February 21, 2012 by Shanaynay*

**maths**

john thinks of 2 different numbers .they have a sum of 12 and a difference of 2 .what are tow numbers?
*February 22, 2016 by maryam*

**algebra word problem**

the difference between 2 numbers is 24. find the numbers if their sum is 88
*October 4, 2010 by brian*

**Math**

The product of three numbers in geometric progression is 1, their sum is -2/3. Find the numbers.
*November 2, 2013 by Adigun*

**Math**

The sum of three consecutive odd numbers is 615? Find the numbers.
*May 13, 2015 by Preia*

**MATH**

Which two different even numbers (less than 10) have the sum of 12? (whose sum is 12)
*August 8, 2011 by Amy*

**Math**

The H.C.F and L.C.M of two numbersare 8 and 504 respectively. One of the numbers is 72.determine the other number
*September 8, 2015 by Noor*

**Calculus**

Find two numbers whose sum is 10 for which the sum of their squares is a minimum.
*December 16, 2008 by bobby*

**College Algebra**

The sum of three consecutive natural numbers is 966. Find the numbers.
*July 23, 2015 by Richard*

**Algebra 1- Math**

The sum of a smaller number and twice a larger number is 67. If the smaller number is increased by 5, the sum will equal the larger number. Find the numbers. A rectangles width is four more than twice its length. Its perimeter is 62. Find the dimension of the rectangle?
*February 6, 2013 by Tony*

**algebra**

i'm thinking of two numbers, x and y. The sum of 4x and 1 is y. The sum of y and twice x is 13. Find x and y.
*May 21, 2014 by bob*

**CITY SCHOOL **

useing these numbers: 25 - 7 - 8 - 5 - 4 - 3 make an equation so that the answer equals 828,but you can ONLY use those numbers. you cant add any more numbers and you cant repeat any of the numbers. you DONT have to use all the numbers though
*August 25, 2010 by NADIR*

**Math**

A magic square is a square of numbers with each row, column, and diagonal of the square adding up to the same sum, called the magic sum. Arrange the numbers, -1,0,1,2,3,4,5,6,and 7 into a magic square. How does the average of these numbers compare with the magic sum?
*September 10, 2007 by Michelle*

**statistics**

Assign your numbers for mean μ and standard deviation σ. Then select one number "a" bellow μ and one number "b" above μ. Choose these numbers not far from μ so we can use z. Find probability that x is between a and b: P(a < x < b)
*September 4, 2014 by Annie*

**Algebra**

The sum of 2 numbers is 19 Seven times the first number is five more than the second. What are the 2 numbers? How do I get the formula for the question? Is it 7X+7-5=19 if X=first number and y=second number
*February 9, 2009 by Sora*

**Arithmetic**

three numbers in an arithmetic sequence sum up to six. if you add 1 to the first number, 2 to the second number, and 5 to the third number, what are the orginal three numbers?
*February 19, 2013 by Isaac *

**advance algebra**

The difference of two numbers is 192.If one is 9 times the other, what is the bigger number. X=smaller number y= bigger number please help..thanks
*January 19, 2011 by A-D*

**INTERMEDIATE ALGEBRA**

HOW DO I FIND OUT WHAT The sum of three consecutive natural numbers is 870, find the numbers
*February 12, 2016 by LISA MORISON*

**Programming**

I suppose to write a program that calculates the average of up to 50 numbers input by the user and stored in an array. The program should use a class name Statistics and have an AddNumber method that stores numbers into an arrey one at a time. The class should have a count ...
*May 11, 2011 by Solomon*

**pre-algebra**

In a number square, the sum of the numbers in each row, column, and main diagonal is the same. Find the sum of the number square. a 7 2 1 5 b 8 c 4
*September 28, 2009 by Nathan*

**MATH HELPPPP!!!!!**

If the sum is zero, what is the relationship of the two numbers? (this is an integers question--adding and subtracting-multiplying-and deviding positive and negative numbers)
*November 22, 2008 by Mary*

**Math**

Two numbers total 43 and have a difference of 21. Find the two numbers
*December 5, 2012 by Cody *

**Math**

1. Which of the following is an example of an integer? (1 point) a.-15*** b.3/5 c.square-root of 7 d.0.252525... 2.Which statement is false?(1 point) a.Every integer is a real number b.The number zero is a rational number c.Every irrational number is a real number*** d.Every ...
*September 20, 2015 by Demetrius Wright*

**math**

the sum of a numbers is 15 and their difference is 4. form a pair of simultaneous equations and solve to find the numbers.
*January 15, 2010 by disha*

**Math**

The sum of three consecutive numbers is 66.Form an equation to represent this information and find these numbers
*June 7, 2016 by Hazel*

**Math**

The digit sum for 126 is 1+2+6, or 9. The digit sum for 300 is 3+0+0, 0r 3. Find the two consecutive numbers that have digit sums of 36 and 1 Please help - Thank You
*June 27, 2014 by Josh*

**Math**

The sum of two numbers is 35.31. On of the addends is 9.8. What is the other addend?
*November 30, 2015 by Amy*