Question about Computers & Internet

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Posted on Jan 02, 2017

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SOURCE: heena has only rs 2

Is this a maths school problem?

You need to use algebra -

2x + 5y = 232 (heena has a number of 2 and 5 coins in her purse which add up to 232)

x + y = 80 (heena has x number of 2 and y number of 5 coins which tally to 80)

therefore, x = 80 - y

so going back to first equation, 2(80 - y) + 5y = 232

160 - 2y + 5y = 232

3y = 72

y = 24

and going back to x, x = 80 - y

x = 80 - 24

x = 56

so heena has 56 rs 2, and 24 rs 5. So the answer is 24.

Posted on Jan 26, 2011

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SOURCE: on 1st may 2004 smt.banu

What a load of drivle. What has it got to do with Laptop Repairs?

Posted on Feb 10, 2011

First make 1 2/3 into a mixed fraction and then divide it by 3.

To make 1 2/3 into a mixed fraction, multiply the whole number, in this case, 1, by the denominator (the bottom number) and then add the numerator (the top number). Thus, we get (1*3+2)/3 or 5/3. Now we have to take 5/3 and divide it by 3. I was taught that in this case, dividing by 3 is the same as multiplying by 1/3. 5/3 x 1/3 = 5/9.

If you have access to a calculator you can always check this. On the calculator, do 2 divided by 3 and add 1. Now take that answer and divide by 3. Write down this answer. Now take 5 and divide by 9. Write down this answer. They should be the same.

Good luck.

Paul

To make 1 2/3 into a mixed fraction, multiply the whole number, in this case, 1, by the denominator (the bottom number) and then add the numerator (the top number). Thus, we get (1*3+2)/3 or 5/3. Now we have to take 5/3 and divide it by 3. I was taught that in this case, dividing by 3 is the same as multiplying by 1/3. 5/3 x 1/3 = 5/9.

If you have access to a calculator you can always check this. On the calculator, do 2 divided by 3 and add 1. Now take that answer and divide by 3. Write down this answer. Now take 5 and divide by 9. Write down this answer. They should be the same.

Good luck.

Paul

Mar 17, 2015 | Office Equipment & Supplies

If Michael used 5 gallons to cover 1750 square feet, we can calculate how much each gallon covers by taking 1750 and dividing it by 5, which is 350 square feet per gallon.

He has 2,800 square feet to paint, while he has now painted 1, 750 square feet. We have to calculate how much more he needs to paint by subtracting 1,750 from 2,800. I get 1050 square feet to still paint.

We divide this amount 1,050 and divide it by 350 square feet per gallon. I get 3, so we need 3 more gallons. If it was 3 point something, we would have to get an extra gallon to complete the job.

Good luck.

Paul

He has 2,800 square feet to paint, while he has now painted 1, 750 square feet. We have to calculate how much more he needs to paint by subtracting 1,750 from 2,800. I get 1050 square feet to still paint.

We divide this amount 1,050 and divide it by 350 square feet per gallon. I get 3, so we need 3 more gallons. If it was 3 point something, we would have to get an extra gallon to complete the job.

Good luck.

Paul

Mar 13, 2015 | Office Equipment & Supplies

Hi Anonymous,

You can make equivalent fractions by multiplying or dividing both top and bottom by the same amount, but only multiply or divide, never add or subtract, to get an equivalent fraction.

I've only shown the fraction part of your question as 1 is a whole number.

1/2 = 2/4, or 4/8, or 8/16 or 16/32 or 32/64 & so on.

Going the other way, dividing 2/4 by 2 will give 1/2.

But, only divide when the top and bottom would still be whole numbers, for instance you wouldn't use divide for odd number fractions, for example 1/3 or 3/5 etc.

Trust this helps, best regards Alan

You can make equivalent fractions by multiplying or dividing both top and bottom by the same amount, but only multiply or divide, never add or subtract, to get an equivalent fraction.

I've only shown the fraction part of your question as 1 is a whole number.

1/2 = 2/4, or 4/8, or 8/16 or 16/32 or 32/64 & so on.

Going the other way, dividing 2/4 by 2 will give 1/2.

But, only divide when the top and bottom would still be whole numbers, for instance you wouldn't use divide for odd number fractions, for example 1/3 or 3/5 etc.

Trust this helps, best regards Alan

Feb 11, 2015 | Office Equipment & Supplies

This calculator does not have a key that you can use to find the prime factor of an integer.

You can however use the calculator to find the factors

1.** If number is even divide it by 2**

Keep dividing by 2, while keeping track of how many times you divided by 2.

If you divided 5 times by 2 before getting an odd number, then your first factor is 2^5

2.**Now try dividing by 3**, keep track of the number of times you divided by 3 before you could not divide by 3 any more. If you divided 0 times by 3, your second factor is 3^0, or 1 and 3 is not a factor.

If you divided 4 times by 3, your second factor is 3^4

3.**Divide by 5,** until you can't any more. Keep track of the number of times you divided by 5.

4. Divide by all other prime numbers 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, etc. For each prime number, keep track of how many times you divided by it, until you could not any more.

**Example: 23100**

*Division by 2*

23100/2=11550 ---------> 1 division by 2

11550/2=5775 ----------> 2 divisions by 2

Note that 5775 is not divisible by 2.** No more divisions by 2. **

First factor is 2^2

*Division by 3:*

5775/3=1925 ----------> 1 division by 3

1925/3=641. 66667 Not an integer. No more divisions by 3.

**2nd factor is 3^1**

*Division by 5 (number ends in 5)*

1925/5 =385 -------> 1 division by 5

385/5=77 ----------> 2 divisions by 5 and no more (quotient does not end in 0 or 5)

**3rd factor is 5^2**

*Division by 7 *

77/7=11 --------> 1 division by 7, and no more

**4th factor is 7^1=7**

*Division by 11*

11/11=1

**5th factor is 11^1=11**

Assembling the factors 2^2, 3^1, 5^2, 7, 11

Prime factorization of 23100 is

**23100=(2^2)(3)(5^2)(7)11**

You can however use the calculator to find the factors

1.

Keep dividing by 2, while keeping track of how many times you divided by 2.

If you divided 5 times by 2 before getting an odd number, then your first factor is 2^5

2.

If you divided 4 times by 3, your second factor is 3^4

3.

4. Divide by all other prime numbers 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, etc. For each prime number, keep track of how many times you divided by it, until you could not any more.

23100/2=11550 ---------> 1 division by 2

11550/2=5775 ----------> 2 divisions by 2

Note that 5775 is not divisible by 2.

First factor is 2^2

5775/3=1925 ----------> 1 division by 3

1925/3=641. 66667 Not an integer. No more divisions by 3.

1925/5 =385 -------> 1 division by 5

385/5=77 ----------> 2 divisions by 5 and no more (quotient does not end in 0 or 5)

77/7=11 --------> 1 division by 7, and no more

11/11=1

Assembling the factors 2^2, 3^1, 5^2, 7, 11

Prime factorization of 23100 is

Dec 18, 2013 | Texas Instruments TI-30XA Calculator

No answer, but...

I have a similar problem... I can power up my rs-911, then about 3-5 sec. later, it shutsdown (standby light still on)... What in the tarnation is going on? All 3 fuses are OK.?.

I have a similar problem... I can power up my rs-911, then about 3-5 sec. later, it shutsdown (standby light still on)... What in the tarnation is going on? All 3 fuses are OK.?.

Nov 18, 2013 | Fisher Audio Players & Recorders

__CASE STUDY
- 1__

**Chemical A**

**Chemical B**

**Chemical C**

**Qty(Kgs)**

__Rate
(Rs.)__

**Amount(Rs.)**

**Qty(Kgs)**

__Rate
(Rs.)__

**Amount(Rs.)**

**Qty(Kgs)**

__Rate
(Rs.)__

**Amount(Rs.)**

Cost of
Chemicals

6,000.00

4.20

25,200.00

10,000.00

3.80

38,000.00

4,000.00

4.75

19,000.00

VAT

630.00

950.00

475.00

Railway
Freight

300.00

500.00

200.00

Octroi 2%

504.00

760.00

380.00

Hamali

20.00

58.12

30.75

**Total Cost**

**6,000.00 **

** **

**26,654.00 **

**10,000.00 **

** **

**40,268.12 **

**4,000.00 **

** **

**20,085.75 **

Less: Shortage

-100

-140

-50

Net Qty
Received

5,900.00

26,654.00

9,860.00

40268.12

3,950.00

20085.75

Normal loss

-236

-394

-158

NEED ANSWERS CONTACT ME AT aravind.banakar@gmail.com M : 09901366442 / 09902787224

Aug 30, 2011 | Computers & Internet

100*4117484/163715657 gives me about 2.5%. Since you didn't specify the calculator your're using, I can't give you the exact keystroke sequence, but on a typical algebraic calculator it would be something like 1 0 0 * 4 1 1 7 4 8 4 / 1 6 3 7 1 5 6 5 7 =

On an RPN or RPL calculator, it would be

1 0 0 ENTER 4 1 1 7 4 8 4 * 1 6 3 7 1 5 6 5 7 /

On an RPN or RPL calculator, it would be

1 0 0 ENTER 4 1 1 7 4 8 4 * 1 6 3 7 1 5 6 5 7 /

Mar 04, 2011 | Office Equipment & Supplies

What a load of drivle. What has it got to do with Laptop Repairs?

Feb 10, 2011 | Computers & Internet

Every associate leaves 4/5(n-1) molecules of a pile of n molecule. This result in an awful formula for the complete process (because every time one molecule must be taken away to make the pile divisible by 5):

4/5(4/5(4/5(4/5(4/5(4/5(p-1)-1)-1)-1)-1)-1), where p is the number of molecule in the original pile, must be a whole number.

The trick is to make the number of molecule in the pile divisible by 5, by adding 4 molecules. This is possible because you can take away those 4 molecules again after taking away one fifth part of the pile: normally, 4/5(n-1) molecules are left of a pile of n molecules; now 4/5(n+4) =4/5(n-1) +4 molecules are left of a pile of n+4 molecules. And because of this, the number of molecule in the pile stays divisible by 5 during the whole process. So we are now looking for a p for which the following holds:

4/5×4/5×4/5×4/5×4/5×4/5× (p+4) = (46/56) × (p+4), where p is the number of molecule in the original pile, must be a whole number.

Therefore, the smallest (p+4) for which the above holds, is 56.

So there were p=5 power 6 - 4 = 15621 molecule in the original pile.

Dec 16, 2010 | Cell Phones

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