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#6076 2015-09-20 11:23:28
- 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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#6077 2015-09-20 17:00:54
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5521 is perfect! Excellent!
#5522. The sum of the ages of a man and his son is 45 years. Five years ago, the product of their ages was 4 times the man's age at the time. Find their present ages.
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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#6078 2015-09-20 18:14:19
- 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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#6079 2015-09-20 18:31:31
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5522 is orrect! Neat work!
#5523. If cos A = 4/5, find the values of tan A, sec A, cosec A, and cot A.
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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#6080 2015-09-21 01:59:20
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Only a friend tells you your face is dirty.
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#6081 2015-09-21 11:42:53
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi math9maniac,
The solution #5523 (four parts) is correct! Good work!
#5524. 5 pens and 6 pencils together cost $9 & 3 pens and 2 pencils cost $5. Find the cost of each pen each pencil.
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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#6082 2015-09-21 11:48:43
#6083 2015-09-21 14:06:13
- 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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#6084 2015-09-21 14:24:36
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi zetafunc and bobbym,
The solution #5524 is correct, zetafunc and bobbym! Neat work!
#5525. Find the values of 'k' for which the roots are real and equal in each of the following equations:
.
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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#6085 2015-09-25 18:11:47
- 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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#6086 2015-09-25 19:00:35
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
hi bobbym,
The solution #5525 (two parts) are correct! Brilliant!
#5526. Using the formula sin(A - B) = sinA cosB - cosA sinB, find the value of
.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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#6087 2015-09-26 22:26:18
- 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
#6088 2015-09-26 22:45:19
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5526 is perfect! Immaculate!
#5527. Find the value of 'k' if (x - 1) exactly divides
.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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#6089 2015-09-27 02:54:23
- 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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#6090 2015-09-27 03:49:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5527 is correct! Neat work!
In the following problems, use
#5528, Find the circumference and area of a circle of radius 8.4 centimeres.
#5529. Find the area of a circle whose circumference is 22 centimeters.
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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#6091 2015-09-29 15:12:39
- 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.
Offline
#6092 2015-09-29 15:40:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solutions #5528 and #5529 are both correct! Good work!
#5530. The circumference of a circle exceeds the diameter by 16.8 centimeters. Find the radius of the circle.
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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#6093 2015-10-01 19:06:54
- 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
#6094 2015-10-01 21:09:36
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5530 is correct! Neat work!
#5531. The inner circumference of a circular track is 220 meters. The track is 7 meters wide everywhere. Calculate the cost of putting up a fence along the outer circle at the rate of $2 per meter.
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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#6095 2015-10-02 16:52:48
- 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
#6096 2015-10-02 17:42:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5531 is correct! Excellent, bobbym!
For #5532 and #5533 :
#5532. A wheel has diameter 84 centimeters. Find many complete revolutions must it take to cover 792 meters.
#5533. The diameter of the diving wheel of a bus is 140 centimeters. How many revolutions per minute must the wheel make in order to keep a speed of 66 kilometers per kour?
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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#6097 2015-10-03 18:22:17
- 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.
Offline
#6098 2015-10-03 21:48:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5533 is correct! Neat work!
#5534. Find the Greatest Common Divisor of 96 and 404 by prime factorization method. Hence, find their Least Common Multiple.
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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#6099 2015-10-04 01:32:41
- 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
#6100 2015-10-04 01:45:09
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,410
Re: 10 second questions
Hi bobbym,
The solution #5534 (both parts) are corret! well done!
#5535. 3 bags and 4 pens together cost $257 whereas 4 bags and 3 pens together cost $324. Find the total cost of 1 bag and 10 pens.
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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