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	How do i reverse this formula?		2013-04-20
		From MK: I have 22,000,000 worth of gold and wants to want to resell the gold back with a profit. Each transaction of gold will have a transaction fee of 15%, so if i resell the gold back at 22,000,000, I will only get back 18,700,000 after 15% transaction cut. The current formula is X-15%X = Y where X = 22,000,000 and Y = 18,700,000 Will u be able to come up with a new formula if we don't know the value of X but we know the value of Y Something like this X-15%X = 22,000,000. How do i reverse this formula to find the value of X Thanks Answered by Penny Nom.
	650*(1+0.005)^96		2013-04-17
		From joAnn: i am trying to figure out how to solve a question like this for example: 650(1+.005)96 I have been doing it this way but takes forever and wanted to know a shorter way 650 x 1.005 x 1.005 x 1.005 x 1.005 96 times HELP Answered by Penny Nom.
	A circle, a chord and an arc		2013-04-16
		From Tim: Morning, I was told the chord is 3000mm and the depth of chord is 300mm, I can find the radius,(1500 squared + 300 Squared) Divided by (300 + 300) but don't know how to calculate the length of the circle defined by the chord. Regards Tim Answered by Penny Nom.
	A cyclic rhombus		2013-04-16
		From Marisa: I know that the only rhombus that can be inscribed in a circle is a square, but why is that? I've been racking my brain and the internet for solutions, but have found no logical explainations in relation to the arc degrees and angles. Please help. Answered by Chris Fisher.
	8 golfers, 3 rounds		2013-04-15
		From justin: I have 8 golfers going on a trip. We have 3 rounds to play. We would like to play with everyone (with or against.) Is this possible? If so could you send me the formula please and thank you! Answered by Robert Dawson.
	A cone problem		2013-04-14
		From Courtney: Hello, I am having difficulty solving this cone problem. The biggest challenge I have is figuring out what angle they are talking about: The angle at the base of a cone is 34.5 degrees. Find the diameter of the cone at point on the edge of the cone 26cm from the tip. Answered by Penny Nom.
	How do i write log_8(P) =7 in exponential form?		2013-04-14
		From nancy: How do i write this in exponential form log8P =7 Answered by Penny Nom.
	4 linear equations with 3 unknowns		2013-04-12
		From Marian: how to solve for 3 unknowns in 4 simultaneous equations Answered by Penny Nom.
	Bags of pre-mixed concrete		2013-04-12
		From Bruce: Hello there, I need two cubic yards of concrete for a playgound I am installing for my kids. That much i have figured out. I am stumped over the number of 25kg bags of pre-mixed concrete i will need to accomplish my goal. Your help would be greatly appreciated. Thanks Bruce Answered by Harley Weston.
	The area of a right triangle		2013-04-10
		From derek: The legs of a right triangle measure 4 and 6 inches. The area of the triangle is Answered by Penny Nom.
	Sharing in a car rental		2013-04-09
		From Marilyn: 8 persons are planning to share equally the cost of a rental car. If 1 person withdraws from the arrangement and the others share equally the entire cost of the car, then the share of each of the remaining persons is increased by--------------? Answered by Penny Nom.
	10 golfers playing four rounds		2013-04-09
		From Terry: I've searched "golf" and "golf 10" but don't see 10 golfers playing four rounds (each round having one foursome plus two threesomes, and no "flights" as in one earlier answer); each player playing at least once with a maximum number of the other nine over the four rounds? Answered by Victoria West.
	deux wagons		2013-04-05
		From Cyril: Bonjour, je suis confronté à un problème dont je n'arrive pas à trouver la solution. Le voici: "Deux wagons de masses 30 tonnes et 60 tonnes entrent en collision sur une voie ferrée droite horizontale, ne déraillent pas et restent collés ensemble après le choc. Juste après la collision, ils roulent ensemble à 10 km/h vers le nord. Sachant que le wagon léger roulait à 20km/h vers le nord avant la collision, la vitesse du wagon lourd avant la collision = ?" Je pense qu'il faut employer la formule de la quantité de mouvement "p=mv" mais je ne sais pas comment m'y prendre... Merci d'avance pour votre aide! Cyril Biselx Answered by Claude Tardif.
	The equation of a line		2013-04-04
		From Miranda: My coordinates provided are (6, 6) and (-8, 9) and i need to put this into ax=bx=c format. I remember the equation to find the slope of y2-y1/x2-x1 to get the slope. However when i put that back into the y=mx+b format it still leaves me with a lot of variables. Please help :) Answered by Penny Nom.
	A gravel pile in the shape of a triangular pyramid		2013-04-04
		From Casey: Hello Right now I am stuck and I feel embarrassed because I feel like the answer is so easy I should know it. I am working on a project and need to find a volume of gravel it will take to occupy this triangular prism like area. I am not sure what formulas I should use whether it be that for the volume of a pyramid or something more complex? Basically it forms a right triangle at one side then from there all points slope to one singular point about 10412mm away. I am attaching a picture drawn up in paint with the actual dimensions to clear up any confusion. Thank you for any help. Casey Answered by Penny Nom.

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