Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#5476 2017-04-18 15:03:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3760 is correct. Neat work, bobbym!
#3761. For each of the following sysyem of equations determine the value of k for which the given system has no solution:
3x - 4y + 7 = 0,
kx + 3y - 5 = 0.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5477 2017-04-18 21:29:16
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5478 2017-04-19 15:00:58
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3761 is correct. Neat work, bobbym!
#3762. For each of the following sysyem of equations determine the value of k for which the given system has no solution:
2x - ky + 3 = 0,
3x + 2y - 1 = 0.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5479 2017-04-19 22:56:06
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5480 2017-04-20 02:22:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3762 is correct. Neat work, bobbym!
#3763. For what value of k will the equations x + 2y + 7 = 0, 2x + ky + 14 = 0 represent coincident lines?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5481 2017-04-20 08:25:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5482 2017-04-20 13:42:04
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3763 is correct. Good work, bobbym!
#3764. For what value of k, will the following system of equations have infinitely many solutions?
2x + 3y = 4,
(k + 2)x + 6y = 3k + 2.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5483 2017-04-20 23:26:08
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5484 2017-04-21 14:50:21
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3764 is correct. Neat work, bobbym!
#3765. Determine the values of a and b for which the following system of equations has infinite solutions:
2x - (a - 4)y = 2b + 1,
4x - (a - 1)y = 5b - 1.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5485 2017-04-21 16:35:09
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5486 2017-04-22 14:55:04
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3765 (two parts) is correct. Neat work, bobbym!
#3766. Determine the values of m and n so that the following system of linear equations have infinite number of solutions:
(2m - 1)x + 3y - 5 = 0,
3x + (n - 1)y - 2 = 0.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5487 2017-04-23 14:38:20
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5488 2017-04-23 18:43:32
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution set in #3766 is perfect. Excellent, bobbym!
In each of the following system of equations determine whether the system has a unique solution, no solution or infinitely many solutions.
In case there is a unique solution, find it:
x - 3y = 3,
3x - 9y = 2.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5489 2017-04-24 01:45:51
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5490 2017-04-24 15:12:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3767 is correct. Neat work, bobbym!
#3768. In each of the following system of equations determine whether the system has a unique solution, no solution or infinitely many solutions.
In case there is a unique solution, find it:
(i) 2x + y = 5,
4x + 2y = 10.
(ii) x - 2y = 8,
5x - 10y = 10.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5491 2017-04-24 15:51:06
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5492 2017-04-25 00:17:22
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3768 (two parts) is correct. Keep it up, bobbym!
#3769. Find the value of k for which the following system of equations has a unique solution:
kx + 2y = 5,
3x + y = 1.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5493 2017-04-25 01:37:20
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5494 2017-04-26 16:22:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3769 is correct. Keep it up, bobbym!
#3770. Find the value of k for which the following system of equations has a unique solution:
4x + ky + 8 = 0,
2x + 2y + 2 = 0.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5495 2017-04-27 02:34:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5496 2017-04-27 13:52:04
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3769 is correct. Good work, bobbym!
#3770. Find the value of k for which the following system of equations has a unique solution:
4x - 5y = k,
2x - 3y = 12.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5497 2017-04-27 14:51:05
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5498 2017-04-28 16:41:27
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3770 is correct. Excellent, bobbym!
#3771. Find the value of k for which the following system of equations has a unique solution:
x + 2y = 3,
5x + ky + 7 = 0.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#5499 2017-04-29 18:10:34
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5500 2017-04-30 14:13:38
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,428
Re: Oral puzzles
Hi;
The solution #3771 is correct. Neat work, bobbym!
#3772. Find the value of k for which each of the following system of equations have infinitely many solution:
2x + 3y - 5 = 0,
6x + ky - 15 = 0.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline