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Math problem divide a bar 20 feet long into equal parts 3 1/4 inches.

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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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How much area will be covered with 36.78 cubic feet of mulch please answer in feet and inches


How it Works

Stone and Mulch Calculators

As an example, let's use 500 square feet to be mulched at a
3" depth.
  1. 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.
  2. 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.
  3. 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.
  4. 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.


For Your Information


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

Jun 29, 2016 | Calculators

2 Answers

How many cubic yards would it take to fill in. 20' x 2' diameter


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

Jan 05, 2016 | Calculators

1 Answer

2800 square feet 4 inches thick. How many yards?


Since 4 inches is 1/3 foot (.333), you first compute cubic feet. The equation is:

2800 divided by .333 = 933.33 cubic feet

Next divide by 9 to get (cubic) yards:

933.33 divided by 9 = 103.703 yards

Aug 29, 2015 | Calculators

1 Answer

All these answers are for square objects. How do I find the measurements of a round object, i.e. a cement mixer?


Hi Debbie:
You still get to use your calculator, but you need to use the mathematical formulae dealing with circles.
Area = pi times r squared
Volume of a cylinder = Area (of one end) times length.

For your cement mixer, (Average the diameter for simplicity)
All of the measurements need to be in the same units, lets use inches, then convert it to cubic feet.....
the volume would be:
pi (22 divided by 7)
times
1/2 diameter
times
1/2 diameter
times
depth

For my ancient mixer that would be:
22 / 7 x 10" x 10" x 22" = 6,914 cubic inches
1 cubic foot equals 12" x 12" x 12" equals 1728 cubic inches.
6,914 divided by 1728 equals 4 cubic feet.

Now we don't fill it right up, but that is its capacity.

Hope that helps.
By the way, my mixer likes 10 shovel fulls of navvy, 2 shovels of type 10 cement, and about 2 quarts of water to get a nice mix.
I do the water first,
then 5 navvy
then 2 cement
then another 5 navvy,
then just enough water to get the right consistency.
Cheerfuls!

May 10, 2015 | Calculators

1 Answer

I measured a freezer in inches which Are 20 30 20 Please calculate in cibic feet


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 | Calculators

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