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#7376 2017-03-17 21:14:54
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution set in #6120 is correct. Neat work, bobbym!
#6121. Solve for x and y:
2(ax - by) + a + 4b = 0,
2(bx + ay) + b - 4a = 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.
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#7377 2017-03-18 11:08:47
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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.
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#7378 2017-03-18 14:31:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution set in #6121 is correct. Remarkable, bobbym!
#6122. Solve for x and y:
(a + 2b)x + (2a - b)y = 2,
(a - 2b)x + (2a + b)y = 3.
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.
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#7379 2017-03-18 16:26:08
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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.
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#7380 2017-03-18 17:26:09
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution #6122 is correct. Brilliant, bobbym!
#6123. Solve for x and y:
ax/b - by/a = a + b,
ax - by = 2ab.
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.
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#7381 2017-03-18 21:37:17
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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.
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#7382 2017-03-18 22:29:01
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution set in #6123 is perfect. Neat work, bobbym!
#6124. Solve:
3x + 2y + 25 = 0,
2x + y + 10 = 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.
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#7383 2017-03-19 08:36:53
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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.
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#7384 2017-03-19 15:00:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution #6124 is correct. Good work, bobbym!
#6125. Solve for x and y:
ax + by = a - b,
bx - ay = a + b.
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.
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#7385 2017-03-19 18:26:39
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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.
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#7386 2017-03-19 20:15:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution set in #6125 is correct. Good work, bobbym!
#6126. Solve for x and y:
.
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.
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#7387 2017-03-20 11:35:56
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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.
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#7388 2017-03-20 14:57:58
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution set in #6126 is correct. Good work, bobbym!
#6127. Solve for x and y:
.
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.
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#7389 2017-03-20 19:09:21
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#7390 2017-03-20 19:32:41
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution set in #6127 is correct. Excellent, bobbym!
#6128. The coach of a cricket team buys 7 bats and 6 balls for Rs 3800. Later, he buys 3 bats and 5 balls for Rs 1750. Find the cost of each bat and each ball.
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.
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#7391 2017-03-20 22:54:52
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#7392 2017-03-20 23:45:48
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution #6128 is correct. Keep it up, bobbym!
#6129. In a two digit number, the ten's digit is three times the unit's digit. When the number is decreased by 54, the digits are reversed. Find the number.
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.
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#7393 2017-03-21 20:31:01
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#7394 2017-03-21 21:27:18
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution #6129 is correct. Good work, bobbym!
The sum of the digits of a two digit number is 8 and the difference between the number and that formed by reversing the digits is 18. Find the number.
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.
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#7395 2017-03-21 23:46:14
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#7396 2017-03-22 14:46:45
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution #6130 is correct. Neat work, bobbym!
#6131. The sum of a two digit number and the number obtained by reversing the order of its digits is 121, and the two digits differ by 3. Find the number.
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.
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#7397 2017-03-22 17:10:48
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#7398 2017-03-22 19:54:52
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution #6131 is correct. Neat work, bobbym!
#6132. The sum of a numerator and denominator of a fraction is 18. If the denominator is increased by 2, the fraction reduces to 1/3. Find the fraction.
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.
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#7399 2017-03-22 20:30:45
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#7400 2017-03-22 22:59:14
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi;
The solution #6132 is correct. Smart work, bobbym!
#6133. Ritu can row downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current.
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.
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