Question about Computers & Internet

1 Answer

3 nos. in A.P. whose sum is 48

Such as the sum of their square is 800

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 139 Answers

Let nos be x-d, x, x+d
then (x-d)+(x)+(x+d)=48
=> 3x+d -d =48
3x=48
x=48/3
x=16

now
(x-d)^2 + x^2 + (x+d)^2 = 800
x^2 + d^2 -2xd + x^2 +x^2 + d^2 + 2xd=800
3x^2 + 2d^2 =800
3*(16)^2 + 2d^2 =800
3*256 + 2d^2 =800
768 + 2d^2=800
2d^2=800-768= 32
d^2 = 32/2= 16
d=sqrt(16)
d=4

so numbers are x-d=16-4=12
x=16
x+4=16+4=20

Thanks

Zulfikar Ali

Posted on Jan 27, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

The numbers on three raffle tickets are consecutive integers whose sum is 7530. find the integers


The integers of the numbers on three raffle tickets are consecutive integers whose sum is 7,530 are 2509, 2510, and 2511.

Feb 24, 2015 | SoftMath Algebrator - Algebra Homework...

1 Answer

Product of sum and difference definition


The product of a sum and difference is the difference of two squares. ie (a+b)*(a-b)=a**2 - b**2 [a squared minus b squared]

Jun 03, 2014 | Activision Computers & Internet

1 Answer

All combinations that equal 12


That is not clear.
Of positive integers? What is equal to 12? The sum the difference, the product? How many number involved in the operation whose result is 12? Please try again with the appropriate details.

Jan 29, 2014 | Computers & Internet

1 Answer

Find the sum of all integer multiples of 8 between 33 and 3051.


This sum is equal to 40+48+56+64+72+...+3024+3032+3040+3048= 40+(48+3048)+(56+3040)+(64+3032)+(72+3024)...
There are (3048-40)/8+1=377 terms in sum. (48+3048)=(56+3040)=(64+3032)=(72+3024)=3096 and there are (377-1)/2=188 pairs whose sum is 3096. Only term that is not in such pair is 40.
Finally sum is 40+188*3096=582088.

Jul 01, 2011 | Computers & Internet

1 Answer

Compare the terms of the product of the square of binomial and the terms of the product of the sum and difference of two terms. What statements can you make?


Compare the terms of the product of the square of binomial and the terms of the product of the sum and difference of two terms. What statements can you make?

Jun 16, 2011 | Computers & Internet

1 Answer

What are the three consecutive integers whose sum is 378?


Let X be the lowest of the 3 integers
The sum of the 3 integers can be represented as X + (X+1) + (X+2).
Set this sum equal to 378 and solve for X.
X + (X+1) + (X+2) = 378
3X + 3 = 378
3X = 375
X = 125
Since X is the lowest of the 3 integers the other 2 will be X+1 and X+2 or 126 and 127.

Therefore, the answer is 125, 126 and 127

Aug 23, 2010 | SoftMath Algebrator - Algebra Homework...

1 Answer

Find the sum of all countig numbers from 1 to 10000.


The sum of the first 7b8b965ad4bca0e41ab51de7b31363a1-1.gif counting numbers 1 + 2 + 3 + 4 + 5 +... + 7b8b965ad4bca0e41ab51de7b31363a1-1.gif is given by ef63e502172134f88498b84124306740-1.gif
Use 954cef9ef0a9ac7b6dd3277568558f47-1.gif, where 027c3429f98f7c39bab027549e1b9c7b-1.gif is the first term in the series, and 825b3fd5bafbc46b9a560ea9f16b21dd-1.gif is the last.

Now to solve this for nos, 1 to 10000 inclusive

Subtract 10000 - 1 = 9999 and add 1 to get 10000 terms in the series.

S = (10000[ 1+10000])/2 = 50,005,000.

This should do it.

Jun 05, 2009 | Super Tutor Pre Algebra (ESDPALG)

5 Answers

Problem solving Strategy guess and test


The two numbers 3 and 24

3 multiplied by 24 =72
24 divided by 3 =8

Enjoy, and thanks for choosing Fixya!

Mar 20, 2009 | M2K Garfield: It's All About Math Math...

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

193 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

kakima

Level 3 Expert

98879 Answers

David Payne
David Payne

Level 3 Expert

14089 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...