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I am not sure what you are after but 20 ft /3.25 in is 240/3.25 or 73.846 pieces assuming no waste in the cut so the next issue is the width of the blade and the resultant loss of material per cut.

Posted on Jan 24, 2009

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Posted on Jan 02, 2017

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Assuming that 20x12 means 20 feet by 12 feet, then you take the three values in feet - 20, 12, and .333 (4 inches is 1/3 foot).

Multiply these three numbers to get the cubic feet:

12 x 20 = 240

240 x .333 = 79.92

Now that you have 79.92 cubic feet, to get cubic yards you divide by 9 since there are 9 cubic feet per cubic yard.

79.92 cu. ft. divided by 9 = 8.88 cubic yards (round up to 9).

Multiply these three numbers to get the cubic feet:

12 x 20 = 240

240 x .333 = 79.92

Now that you have 79.92 cubic feet, to get cubic yards you divide by 9 since there are 9 cubic feet per cubic yard.

79.92 cu. ft. divided by 9 = 8.88 cubic yards (round up to 9).

Jul 27, 2016 | Building Materials

How it Works
### Stone and Mulch Calculators

As an example, let's use 500 square feet to be mulched at a

3" depth.

### For Your Information

3" depth.

- First, the depth must be converted to feet. To convert inches to feet, simply divide inches by 12, the number of inches in a foot.

So for our example: 3 inches divided by 12 equals a 0.25 foot depth. - Now that we have the depth in feet, we can multiply the depth by the area.

So for our example: 0.25 foot depth times 500 square feet equals 125 cubic feet. - If you are calculating 0.5, 2, or 3, cubic foot bags, simply divide 125 cubic feet by the size of the bag.

So for our example: if we are using 2 cubic foot bags, we can divide 125 cubic feet by 2 which equals 62.5 bags. - If you are calculating cubic yards, we need to convert 125 cubic feet to cubic yards by dividing by 27. One cubic yard is equal to 27 cubic feet, see the diagram below.

So for our example: 125 cubic feet divided by 27 equals 4.63 cubic yards.

- 1 inch equals 0.08333 feet
- 1.5 inches equals 0.125 feet
- 2 inc

Jun 29, 2016 | Office Equipment & Supplies

Hi Paula:

A mathematical logic question.

You need to get all of the measurements in the same units.

- A cubic yard is 1 yard x 1 yard x 1 yard

- equals 3 ft x 3 ft x 3 ft

- equals 27 cubic feet,

so once you have the volume of the pipe in cubic feet, you divide by 27 to get the volume in cubic yards.

- Volume of a cylinder (the pipe) is the cross sectional area X length.

- Area equals Pi x r squared.

- equals 22/7 x 1 x 1

equals 3.14#####

times length (20)

equals 62.857### cubic feet volume

divide by 27 cubic feet

equals 2.328### cubic yards.

- The answer is always the easy part.

- what is important is knowing exactly what the question is, and

- determing what calculations are needed to get the answer.

Wasn't that better than if I'd just said 2 1/3 cubic yards?

Cheers

A mathematical logic question.

You need to get all of the measurements in the same units.

- A cubic yard is 1 yard x 1 yard x 1 yard

- equals 3 ft x 3 ft x 3 ft

- equals 27 cubic feet,

so once you have the volume of the pipe in cubic feet, you divide by 27 to get the volume in cubic yards.

- Volume of a cylinder (the pipe) is the cross sectional area X length.

- Area equals Pi x r squared.

- equals 22/7 x 1 x 1

equals 3.14#####

times length (20)

equals 62.857### cubic feet volume

divide by 27 cubic feet

equals 2.328### cubic yards.

- The answer is always the easy part.

- what is important is knowing exactly what the question is, and

- determing what calculations are needed to get the answer.

Wasn't that better than if I'd just said 2 1/3 cubic yards?

Cheers

Jan 05, 2016 | Office Equipment & Supplies

2.33 Cubic Yards

Jan 05, 2016 | Office Equipment & Supplies

conversion tables on Google

Nov 03, 2015 | Office Equipment & Supplies

Hi Wayne:

For my curious mind, what is the project that you need this for?

To solve the problem, the volume of the pipe is the cross sectional area times the length.

Area = pi r squared.

= 22/7 times .75 / 2 squared

= 3.1428571 times .375 times .375

= o.4419642 square inches

The pipe is 10 feet long, times 12 equals 120 inches long.

The pipe volume is 120 times 0.4419642 equals 53.035704 cubic inches.

The next part of the question is to convert cubic inches to gallons.

I use my Texas Instruments TI-1889

53.035704 to metric, in cubed to cm cubed = 869.09608

Divide by 1,000 equals .86909608 litres

From Metric, imp gal (I'm in Canada) to L = 0.1911781

Ta Da!

Cheerfuls

For my curious mind, what is the project that you need this for?

To solve the problem, the volume of the pipe is the cross sectional area times the length.

Area = pi r squared.

= 22/7 times .75 / 2 squared

= 3.1428571 times .375 times .375

= o.4419642 square inches

The pipe is 10 feet long, times 12 equals 120 inches long.

The pipe volume is 120 times 0.4419642 equals 53.035704 cubic inches.

The next part of the question is to convert cubic inches to gallons.

I use my Texas Instruments TI-1889

53.035704 to metric, in cubed to cm cubed = 869.09608

Divide by 1,000 equals .86909608 litres

From Metric, imp gal (I'm in Canada) to L = 0.1911781

Ta Da!

Cheerfuls

Jun 03, 2015 | Cars & Trucks

Hi Bob:

1 cubic yard is 3ft by 3 ft by 3 ft.

3 times 3 times 3 equals 27, so

1 cubic yard equals 27 cubic feet.

2 1/2 inches divided by 12 inches equals .2083333 feet

196 square feet times .208333 feet equals 40.83333 cubic feet

40.83333 cubic ft divided by 27 cubic ft equals 1.5123456 cu yards.

Ta Da!!!!

1 cubic yard is 3ft by 3 ft by 3 ft.

3 times 3 times 3 equals 27, so

1 cubic yard equals 27 cubic feet.

2 1/2 inches divided by 12 inches equals .2083333 feet

196 square feet times .208333 feet equals 40.83333 cubic feet

40.83333 cubic ft divided by 27 cubic ft equals 1.5123456 cu yards.

Ta Da!!!!

May 01, 2015 | Refrigerators

20 inches times 30 inches times 20 inches is 12,000 cubic inches. There are 12 inches in a foot, so one foot is 12^3 or 1728 cubic feet. 12,000 cubic inches divided by 1728 cubic inches per cubic foot is about 6.9 cubic feet.

Apr 21, 2014 | Office Equipment & Supplies

X = 3 (

10x minus 3x equals 20 plus 1

10X minus 3X is 7X (right?)

20 plus 1 is 21 (right?)

therefore:

7X = 21

now divide both sides of the equals sign by 7

7X divided by 7 equals 21 divided by 7

7X / 7 = 21/7

X = 3 (

More math? Ask for Gort007

Thanks for trusting

Sep 14, 2010 | Mathsoft StudyWorks! Mathematics Deluxe...

Dec 14, 2017 | The Office Equipment & Supplies

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