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	Two similar pentagons		2009-11-16
		From louis: The lengths of five sides of a pentagon are 1,3,5,7,and 12 units. If the length of the longest side of a similar polygon is 18 units, find the perimeter of the larger pentagon. I think I figured it out Not sure though. Answered by Penny Nom.
	The line through D(-4, 0) and E(2, 6)		2009-11-16
		From Rogerson: The point F is on the line through D(-4, 0) and E(2, 6) so that DF=4DE. Find the coordinates of F. Answered by Penny Nom.
	A markup and a discount		2009-11-15
		From joe: I have a product that cost $ 300.00 I want a 25% markup and give a 15% discount but keep 25% markup. 300 + 25% = 375 300 + 40% = 420 420 - 15% = 357 what am i doing wrong???? Answered by Harley Weston.
	Maximize profit		2009-11-14
		From Willie: Profit is the difference between Total Revenue and Total Cost. Therefore, to MAXIMIZE PROFIT you must maximize Total Revenue. True or False? Explain answer. Answered by Penny Nom.
	6 numbers from 12		2009-11-14
		From david: how many combinations of 6 numbers can there be using 12 different numbers without using the same numbers more than once? 2, 3, 5, 8, 9, 11, 12, 14, 17, 19, 20 & 31. Answered by Penny Nom.
	Excluded values		2009-11-14
		From Janie: I have to State the excluded values for this equation and then solve, but not sure how to do this. Here is the problem (x+6)/x+3=(3)/(x+3)+2 Answered by Harley Weston.
	Cables in a pipe		2009-11-13
		From john: how many 0.28 mm diameter cables will fit into a 19.05 mm diameter pipe Answered by Stephen La Rocque.
	A triangular shaped ditch		2009-11-12
		From Tim: I am planning on constructing a triangular shaped ditch the measures 550 meters in length, 6 meters wide at the surface, .3048 meters at the invert of the ditch and 2 meters deep. How many cubic meters of material will have to be excavated to construct this ditch Answered by Robert Dawson.
	Les polyèdres		2009-11-12
		From Paul: Parmi tous les polyèdres dont les sommets sont sur une sphère et dont les faces sont isométriques (pas nécessairement régulières, ni nécessairement triangulaires), "(2,3,5)" (voir définition ci-après) est-il celui qui présente le plus grand rapport entre les rayons des sphères inscrite et circonscrite? "(2,3,5)" désigne le polyèdre (de centre O) dont les faces sont des triangles isométriques tel que: si ABC est une face, les mesures des dièdres d'arêtes OA, OB, OC sont pi/2, pi/3 et pi/5. Merci pour ce site. Paul Answered by Robert Dawson and Claude Tardif.
	An isosceles trapezoid		2009-11-12
		From lyjah: what is parallel sides of an isosceles trapezoid measure 5cm and 11cm long.and oneof the other sides also measures s5cn long what of the isosceles trapeziod Answered by Penny Nom.
	Pennies and dimes		2009-11-11
		From Rachel: Kesha had only pennies and dimes in her change purse. When she counted out her change she had 64 cents/ of she had 6 times as many pennies as she did dimes, how many pennies did she have? Write equation and solve it. Can someone help me with this? Answered by Penny Nom.
	Le plus grand commun diviseur		2009-11-11
		From Katie: Question: Pendant mon cours de MAT 1300, mon enseignant m'a posé la question suivante: (a, b) = 12 (a², b) = 24 (b, 72) = ? Pouvez-vous m'aider s'il-vous-plaît? Answered by Claude Tardif.
	A truncated cone		2009-11-11
		From Lucian: I need to calculate the bottom inside diameter of a truncated cone. The top insdie diameter is 1450mm. The material is 6mm thick The cone angle is 20 degrees The slant length is 152mm I would like a formula so that I can build a spread sheet Answered by Penny Nom.
	The fourth vertex of a rectangle		2009-11-11
		From Ellena: The points A(2,-1), B(5,-3), and C(7,0) are the three vertices of a rectangle. Determine he coordinates of the fourth vertex. Answered by Penny Nom.
	A sequence of letters and numbers		2009-11-10
		From Maria: What is the last ten letters and numbers in the following series and how do I work it out so I can explain it to an eleven year old. J1F8M1A0M1J0J1 Answered by Robert Dawson, Claude Tardif and Harley Weston.

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