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	A barrel on its side		2008-11-13
		Dave pose la question : Question from Dave: How many gallons are left in a 36x60 in. barrel (laying on its side) and has 16 in. of gasoline left. I have attached a diagram. Harley Weston lui répond.
	A barn roof		2016-05-29
		Joe pose la question : Is it possible to build a barn roof (irregular pentagon?) with a 12' base and the other 4 sides 4' each? Thanks. Penny Nom lui répond.
	An oil field barrel		2015-08-02
		Michael pose la question : I have a storage tank that is 12' diameter x 22.5' high it's capacity is 450 oil field barrels (42 gallon) Which would hold 19,036 us gallons I'm trying to find out how many inches it would take to make 1 barrel I was able to get this far by using your volume calculator, but haven't been able to come up with the rest! Thank you very much for your time, and I really appreciate this site and the tools you all have made available to everyone for free! Hope to hear back from you soon and God bless you all!! Penny Nom lui répond.
	The surface area of a round bar		2015-06-06
		chirag pose la question : Please tell me the formula for finding round bar surface in square inches/ mm Penny Nom lui répond.
	Barrels of oil		2014-04-16
		daryl pose la question : Looking for an accurate number to use when calculating barrels per inch in a a tank with the following dimensions: Nominal diameter - 15'-6", nominal height - 16ft, nominal capacity - 500 barrels. These are commonly referred to as 500x16 tanks. Currently we are using 2.6 barrels per inch. We need 180 barrels for a full load so I'm trying to figure out how many total inches I need to load 180 bbl. This has been a matter of debate for some time. Thanks for your help. Harley Weston lui répond.
	A goat tied to a rectangular barn		2008-11-02
		Misty pose la question : If there is a goat tied to a rectangular barn on a 50 foot lead and the barn is 20 feet by 20 feet (floor). When the rope goes around the barn, what is the new radius and How much of a circle can it make without hitting the barn or overlapping area you've already found and What is that area? Stephen La Rocque lui répond.
	How many gallons of fuel still in the barrel?		2008-07-22
		Charles pose la question : I have barrel 6 feet long and 3 feet diameter that is laying on it's side with 5 inches of fuel, how many gallons of fuel still in barrel Penny Nom lui répond.
	Repeating decimals		2008-01-29
		Malise pose la question : Write each repeating decimal using bar notation. 0.428571428... Penny Nom lui répond.
	How many barrels of liquid will it hold?		2007-09-28
		Jason pose la question : A tank is 8' wide by 8' tall x 45' long. How many barrels of liquid will it hold?? Stephen La Rocque and Harley Weston lui répond.
	Relating volume to depth in a cylindrical container		2007-04-19
		Dan pose la question : I have a cylindrical polyethylene rain barrel 23" in diameter and 35" high. If I've calculated correctly thus far, its volume is: 14, 547.49 cubic inches (or 8.418686 cubic feet or 0.31 cubic yards) and could, ideally, contain 62.6 gallons of rain water whose weight would be 525.32 lbs. (62.4 lbs./cubic foot X 8.418686). I'm having difficulty relating inch depth markings on the side of the barrel to volume capacity; i.e., how many inches in depth in a cylinder of the size given would = how many gallons (or quarts) of water. The barrel stands upright on its end and is, thus, 35" high when oriented in this fashion, much as a 55-gallon oil drum appears when similarly stowed. Dan Watley Stephen La Rocque lui répond.
	How many barrels would this container hold per inch?		2007-03-10
		LaDonna pose la question : My container is 50" across and 40.5' ft. long. I believe it would hold 140 barrels. If measuring, how many barrels would this container hold per inch? Penny Nom lui répond.
	10 friends run into each other at a bar		2006-08-19
		Ken pose la question : 10 friends run into each other at a bar. We will name them A,B,C,D,E,F,G,H,I AND J. They all leave at the same time heading for seperate bars. However, A runs into B, C runs into D, E runs into F, G runs into H and I runs into J. These five groups leave again and the same thing keeps happening, but each time running in to someone they have not run into before. How many bars will it take, with each person meeting the others only once, until all of them have met each other again? Chris Fisher lui répond.
	A perpendicular intersection of two barrel vaults		2006-07-21
		Neal pose la question : I'm wanting to build a series of architectural models of different roman and medieval buildings out of cardboard. Once I have perfected the models I want to print them out on card stock so that school kids (or anyone else) can make the buildings. A feature of many of these models is the cross or groin vault (a perpendicular intersection of two barrel vaults). A single barrel vault is easy to imagine as a plane (a rectangular piece of cardboard) that will be folded into a semi-circular arch. The intersection of a second barrel vault and this one is presenting me with problems. The second plane needs to have an ellipse cut into it so that when it is folded into the arch, it will mate up with the curve of the first barrel vault. Given that the two pieces of card have identical widths (and therefore identical arcs in cross section) is there a way to calculate the ellipse that needs to be cut so that it can be cut before the second arch is folded? Edward Doolittle lui répond.
	Barrels of oil in a tank		2006-01-09
		Francis pose la question : How many barrels of oil (42 gallons of oil in one oil tank) would there be in an oil tank that was 15 feet tall and 10 feet across? Penny Nom lui répond.
	The bar over repeating digits.		2004-09-07
		Debbie pose la question : I would like to know the name given to the bar that is written over the repeating digits of a decimal. Penny Nom lui répond.
	The horizontal fraction bar		2004-05-27
		Kashia pose la question : What is the name of the bar that separates a numerator and that denominator? Penny Nom lui répond.
	X bar		2003-11-04
		mary pose la question : Remind me what this means: _ X Andrei Volodin lui répond.
	Double bar graphs		2001-09-09
		Leslie pose la question : My daughter has a homework problem in which she is graphing data from two frequency tables onto a double bar graph. The graph shows how many students worked in a program in two different years, grouped by age. In the first age group, one of the years has no students working, while there were students in that age group in the other year. Penny Nom lui répond.
	A bargin with the devil		2001-03-21
		DJ pose la question : There once was a boy who spent all his time dreaming about getting rich. " I would do anything to be rich". The devil, hearing this, appeared before the boy and offered to make him rich. "See that bridge?" said the devil. Just walk across and I will double your money you have now. In fact, each time you cross I will double your money. There is just one thing you must give me $24 after each crossing. The boy agreed. He crossed the bridge, stopped to count his money and, and sure enough, it had doubled. He paid the devil $24 and crossed again. Again his money doubled. He paid another $24 and crossed a third time. Again his money had doubled, but this time there was only $24 left which he had to pay the devil so he was left with nothing. The devil laughed and vanished. How much money did the boy start with? Penny Nom lui répond.
	Repeating decimal notation		2000-12-31
		Clarende Duby pose la question : I have seen single repeating decimals for ex. 1/3 = 0.3 with the dot above the 3 to represent the repeating decimal. Then, there is the more common form of the bar over the top of the repeating number or group of numbers (called the period?). Which notation is correct? Penny Nom lui répond.
	Bar graphs and histograms		2000-01-11
		Raeluck pose la question : What is the difference between a bar graph and a histogram? Harley Weston lui répond.
	Repeating decimals		1996-09-09
		Alice pose la question : What is the line called that is placed over the decimal to show that it is infinitely repeating? The Centralizer lui répond.

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