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**Mathegocart****Member**- Registered: 2012-04-29
- Posts: 1,884

1.There exists positive integers A and B where 1/x - 1/y = 1/(x-y)

The integral of hope is reality.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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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**LearnMathsFree: Videos on various topics.New: Integration Problem | Adding FractionsPopular: Continued Fractions | Metric Spaces | Duality**

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**Mathegocart****Member**- Registered: 2012-04-29
- Posts: 1,884

zetafunc wrote:

2nd. yes.

if x + y > 10 and xy = 15

x and y are real numbers

Find the values of x and y that will minimize 2x-y^2.

s

The integral of hope is reality.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi;

Have you copied the problem correctly?

**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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**LearnMathsFree: Videos on various topics.New: Integration Problem | Adding FractionsPopular: Continued Fractions | Metric Spaces | Duality**

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**Mathegocart****Member**- Registered: 2012-04-29
- Posts: 1,884

Thomas has 16 cookies, where 14 are sugar and 2 are chocolate chip. He wants to share the cookies with his 4 friends, Romeo, Jones, Lee, and Kim. He puts the cookies in a bag and his friends select 4 cookies. What is the probability that 2 friends get 1 chocolate chip cookie?

The integral of hope is reality.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Each friend selects 4 cookies?

**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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**Mathegocart****Member**- Registered: 2012-04-29
- Posts: 1,884

bobbym wrote:

Each friend selects 4 cookies?

Only 1 cookie.

The integral of hope is reality.

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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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**Relentless****Member**- Registered: 2015-12-15
- Posts: 624

I am getting the same answer (:

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