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## #4801 2014-05-14 19:24:43

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

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## #4802 2014-05-15 04:12:43

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym,

The solutions #4957 and #4958 are correct. Superlative!

#4959. If

and
, then what is the value of

?

#4960. If (a - b) is 6 more than (c + d) and (a + b) is 3 less than (c - d), then what is (a - c)?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4803 2014-05-15 05:38:05

Maburo
Member
Registered: 2013-01-08
Posts: 287

### Re: 10 second questions

4959.

4960.

"Pure mathematics is, in its way, the poetry of logical ideas."
-Albert Einstein

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## #4804 2014-05-15 05:45:38

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4805 2014-05-15 16:17:54

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi Maburo and bobbym,

The solutions #4959 and #4960 are correct. Remarkable, Maburo and bobbym!

#4961. If

, then what is the value of
?

#4962. If

, what is the value of P?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4806 2014-05-15 16:55:57

Maburo
Member
Registered: 2013-01-08
Posts: 287

### Re: 10 second questions

"Pure mathematics is, in its way, the poetry of logical ideas."
-Albert Einstein

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## #4807 2014-05-15 21:34:14

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4808 2014-05-16 15:14:22

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi Maburo and bobbym,

The solutions #4961 nd #4962 are correct. Marvelous, Maburo and bobbym!

#4963.

#4964.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4809 2014-05-16 15:44:58

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4810 2014-05-17 21:30:11

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym,

The solutions #4#4965963 and #4964 are correct. Marvelous!

#4965. Find the vlue of x if

.

#4966.

.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4811 2014-05-17 22:28:53

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4812 2014-05-17 23:12:16

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,015

### Re: 10 second questions

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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## #4813 2014-05-18 01:10:34

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym and anonimnystefy,

The solution #4965 is correct, bobbym! Excellent!

The solutions #4965 and #4966 are correct. Stupendous, anonimnystefy!

#4967. If

,
and
, then what is the value of
?

#4968. If a, b, c are integers; a² + b² = 45 and b² + c² = 40, then what are the values of a, b, and c respectively?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4814 2014-05-18 01:20:42

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4815 2014-05-18 09:35:17

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,015

### Re: 10 second questions

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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## #4816 2014-05-18 17:05:18

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym and anonimnystefy,

The solution is perfect, anonimnystefy (#4968)! The solution #4968 is perfect, but for a minor error, bobbym!

#4969.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4817 2014-05-18 17:22:50

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4818 2014-05-19 02:15:40

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym,

The solution #4969 is correct. Splendid!

#4970.

#4971.

.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4819 2014-05-19 02:20:54

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4820 2014-05-19 17:30:27

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym,

The solution #4970 and #4971 are correct. Neat work!

#4972.

(This problem takes  5 to 10 minutes to solve)

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4821 2014-05-19 20:22:46

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4822 2014-05-20 02:15:31

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym,

The solution #4972 is correct Fabulous!

#4973

#4974. Find the value of x if

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #4823 2014-05-20 02:19:59

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,709

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4824 2014-05-20 02:59:03

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,015

### Re: 10 second questions

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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## #4825 2014-05-20 13:28:53

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,755

### Re: 10 second questions

Hi bobbym and anonimnystefy,

The solutions #4973 and #4974 are correct. Marvelous. bobbym and anonimnystefy!

#4975. Find the cube root of 2744.

#4976. By what least number 4320 be multiplied to obtain a number which is a perfect cube?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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