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	Direct and inverse Variation		2007-04-03
		From liz: how do you tell if an equation varies Directly or Inversely? ex. x= 2y or xy+12=3 i know that if you have three numbers (x. y, z) that it varies jointly but how do you tell if it is Inverse or Direct? Thanks for the Help! -liz Answered by Stephen La Rocque.
	The area of a parcel of land		2007-04-03
		From Ricky: I need the attached land parcel (#0436) converted to acreage. This would be of great help to me. Thanks, Ricky Answered by Penny Nom.
	Understanding fractions and their equivalents		2007-04-02
		From Gail: How can I get fourth grade students to understand fractions and their equivalents? Answered by Diane Hanson.
	Interior and exterior angles		2007-04-02
		From Anuj: If in a regular polygon, each exterior angle is twice the interior angle,find the number of sides? Answered by Leeanne Boehm.
	A 30% alcohol solution		2007-04-02
		From Jessica: How many gallons of distilled water must be mixed with 50 gallons of 30% alcohol solution to obtain a 25% solution? Answered by Penny Nom.
	A missing observation		2007-04-02
		From destinee: please help me my problem is 5,11,19,3,15,17,5,n find n given the following info.range:16 mode:5 median:8 mean:10 what the heck is the answer Answered by Penny Nom.
	Using the "difference of squares" formula how do I compute 27 * 33?		2007-04-02
		From Sarah: Using the "difference of squares" formula how do I compute 27 * 33? Answered by Penny Nom.
	Find the expression that represents it perimeter.		2007-04-01
		From Amy: A rectangle has sides of 3x-4 and 7x+10. Find the expression that represents it perimeter. Answered by Steve La Rocque and Haley Ess.
	Tina swims 4 miles upstream at 1 mph		2007-03-31
		From Michael: If Tina swims 4 miles upstream at 1 mph and back downstream to the same point to the same point at 4 mph, what is her average speed? Answered by Penny Nom.
	What is the intensity 5m below the surface?		2007-03-31
		From david: I have this question which I am supposed to set it up and solve as a differential equation. I know how to solve the diffrential equation but I am having hard time understanding this question. Here is the question: The intensity of light in the ocean decreases the deeper you dive. In fact, the rate at which the intensity decreases is proportional to the current intensity. Setup the corresponding differential equation and solve for I(Y), the intensity I as a function of current intensity Y. If the light intensity 2m below the surface is 25% of the intensity at the surface, what is the intensity 5m below the surface. Can you please explain to me what does it mean by current intensity and how do I set this equation up. Thanks for the help. Answered by Penny Nom.
	An octagonal box		2007-03-31
		From eddie: I need to make one wood box in octagon type, that has 1125.00 square feet. I want to know how many feet in one side Answered by Penny Nom.
	How much gravel do I need		2007-03-31
		From linda: how much gravel do I need for 254 square feet to be 4 inches deep? Answered by Penny Nom.
	A "claw setting" for a gemstone		2007-03-30
		From Stephanie: I'm trying to make a cone out of a flat sheet of metal for a "claw setting" for a gemstone. The cone must be 8mm wide at the top and 11mm long tapering to a point. But because the prongs must be cut out of the top the cone should not start to taper for a length of 3mm from that top 8mm. The 3mm prong is then bent over the 8mm stone. That probably doesn't make enough sense. But I don't know how to explain it. If it helps a claw setting is the very common prong setting for engagement rings or earrings. Please help as soon as possible as this is a commissioned piece for someone and I'm running out of time. I don't remember any math really from high school so please make the instructions really easy to follow. Thank You!! Answered by Penny Nom.
	The size of a lot		2007-03-30
		From Phyllis: Could you please figure out the square footage and acreage of my lot? One side is 480ft One side is 410ft One side is 480ft The last side is 410ft Thank you. Answered by Penny Nom.
	Golf schedule		2007-03-30
		From Jim: I am organising a golf break for 12 golfers playing in 3 fourballs over 5 days. I would like to maximise the number of different golfers each player can play with. Any help would br greatly appreciated. Answered by Penny Nom.

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