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	Using the augmented matrix		2008-10-17
		Karlena pose la question : I am supposed to write the augmented matrix of the system and use the matrix method to solve the system. I must show my work algebraically x+y+2z=30 2x+3y+2z=53 x+2y+3z=47 Harley Weston lui répond.
	A football field covered in garbage		2008-10-17
		AMie pose la question : a small city produces 500,000 cubic ft of garbage per week. If all of this garbage were stacked neatly (in a nice vertical pile) on a 100-yard by 60-yard football field, how high would the pile be (in feet)? Penny Nom lui répond.
	An arithmetic series		2008-10-17
		Laura pose la question : In an arithmetic series 5+9+13+...+tn has a sum of 945. How many terms does the series have? What formula do I use? Penny Nom lui répond.
	Integration		2008-10-17
		hazela pose la question : integration of x sinx cosnx Harley Weston lui répond.
	A tangent line to f(x) = 1/(x - 1)		2008-10-16
		Amanda pose la question : If f(x)=1/(x-1) then what is the slope of the tangent line at x=-2? Harley Weston lui répond.
	100,000 + 20%		2008-10-16
		Andrew pose la question : I have a question what 100000 + 20% = Penny Nom lui répond.
	The area of a rug		2008-10-16
		Natcha pose la question : How can I convert the Carpet Roll Size to Square Meters. I have one Roll of carpet, (Quality is 2300 g/m2; 7 pitch/in, 9 rows/in; width: 2m) with dimension 0.5 m width and 4 m length. I needed to know that quantity of that Roll in Square Meters. Penny Nom lui répond.
	A roll of film		2008-10-16
		John pose la question : I need to know how to calculate the build up on a roll of film is calculated. Example: I start with a 6" diameter core, and I start winding .005" thick film on the core, so I am adding a total of .010" to the diameter each wrap. If I continue to do this for a total length of film of 3000 feet, what will the roll diameter be? So what I need is the formula to perform this type of calculation. Can you help me? I want to be able to plug the formula in a spread sheet and to be able to input a core diameter, a film thickness and a total length and get a roll diameter. Penny Nom lui répond.
	Two planes flying in opposite directions		2008-10-16
		samantha pose la question : i don't understand how to do this problem.two jets leave denver at 9:00 am one flying at a speed 50 km/h greater than the other, which is traveling west. at 11:00 am the planes are 2500 km apart. find their speeds. Penny Nom lui répond.
	What percentage is 33333 of 22222?		2008-10-16
		b pose la question : How do I find the percentage of 2 numbers? What percentage is 33333 of 22222? How do I find the answer. Penny Nom lui répond.
	The product of two numbers is 2400		2008-10-16
		belinda pose la question : The product of two numbers is 2400, one number is 20 more than the other number. what are the two numbers? Penny Nom lui répond.
	Related rates		2008-10-16
		Gisela pose la question : As sand leaks out of a hole in a container, it forms a conical pile whose altitude is always the same as its radius. If the height of the pile is increasing at a rate of 6 in/min, find the rate at which the sand is leaking out when the altitude is 10in. Penny Nom lui répond.
	Bags of wheat seed		2008-10-16
		Gayle pose la question : If you want to plant 26 seed per square foot (wheat) on one acre of land and the seed comes in 50 lb bags and there are 13,500 seed per pound (675,000) per 50 pounds, how many bags do you need to plant per acre? Penny Nom lui répond.
	The dimensions of a rectangle		2008-10-16
		cristine pose la question : the area of a rectangle is 675sq.cm. if the width is 1/3 of the length. find the dimensions of the rectangle.... Penny Nom lui répond.
	Perpendicular lines		2008-10-16
		Hailey pose la question : In the xy-plane, the line with equation 2x + y = 3 is perpendicular to the line with equation y = mx + b, where m and b are constants. What is the value of m? Penny Nom lui répond.

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