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What percentage is £2,407.33 of £9,352.41? 2009-03-16
Joanne pose la question :
Could you show me how to work out what percentage £2,407.33 is of £9,352.41 in very basic terms.
Thank you very much
Joanne

Penny Nom lui répond.
A slopped table top 2009-03-16
anthony pose la question :
A perfect circle with radius 100m is supported by four legs, 50m long. The circle is flat when all four legs are 50m long, and tilted when the legs are different in length. The four legs are spread evenly 90 degrees apart at 0, 90, 180, and 270. Find the high and low points in degree and height when the legs are 55m at 0 degree, 70m at 90 degree, 45m at 180 degree, and 30m at 270 degree.

Not sure if they can be calculated using only 2 or 3 legs.

I have tried by picking the two adjacent highest legs (55m and 70m) so I know the high point falls into the first quadrant. Then I tried using ratio to determine where the high point is, which I think high point should be closer to the 70m leg, I am not sure. If I can find the high point, the low point should be opposite to it.

Chris Fisher and Harley Weston lui répond.
The board for a variant of chess 2009-03-16
Adam pose la question :
I am trying to figure out how big a piece of wood I need for a variant of chess I thought up. The board essentially is a set of 6 concentric rings with an empty space in the center, each ring consisting of 24 spaces - so essentially 6 concentric 24-sided polygonal rings made up of trapezoidal spaces. I know the interior angle of the shape (15 degrees), but I can't figure out the size this thing should be.

All I know is that the innermost ring will have the smallest spaces, and that those spaces need to be able to accommodate chess pieces 3/4" wide without them overlapping onto neighboring spaces. That is to say, the short parallel side of the trapezoidal space on the innermost ring should be at least 3/4". But I have no clue how to extrapolate the full diameter of the board from that one measurement. HELP! Adam Goss saganth@yahoo.com

Stephen La Rocque lui répond.
The odds against drawing a red queen 2009-03-15
tabyia pose la question :
7. The common deck of 52 cards has 26 black cards (13 spades and 13 clubs) and 26 red cards (13 hearts and 13 diamonds). Each suit consists of ace, king, queen, jack, ten, nine, eight, seven, six, five, four, three and deuce. 13in all.

A single card is chosen at random. Find the odds against its being a red queen?

How many cards will I have to draw to be absolutely certain that I have drawn three black cards

Harley Weston lui répond.
How do I divide with a decimal is the divisor? 2009-03-15
Shelly pose la question :
How do I divide with a decimal is the DIVISOR ( NOT divsor AND dividend.) ? Also, How do I know when to stop dividing?

P.s. please use long division

Penny Nom lui répond.
The volume of a pipe 2009-03-15
kalen pose la question :
Okay I am doing a problem on a practice sheet to study with and I need help. The question states: How many gallons will 500 feet of six-inch water pipe hold? Do you have any suggestions/breakdowns on how to work out this problem so that in the future I will know how to do it?
Penny Nom lui répond.
An impossible trig problem 2009-03-14
Alisha pose la question :
If csc theta = 3 and sec theta = square root of 3, what are the values of tan theta and cos^2 theta?
Harley Weston lui répond.
How many ball bearings can you make from a cone? 2009-03-14
Vatsal pose la question :
there is a sum in my maths book which states the following: how many ball bearings of diameter 2.5 cm. can you get by melting a solid metalic cone of radi. 20cm and a Hight of 5 meters? how do i do this please tell me even the minute things like cancellatoins and where to use = , ; or any such thing because Im a bit weak in maths
Harley Weston lui répond.
Related rates 2009-03-14
Jeevitha pose la question :
The side of an equilateral triangle decreases at the rate of 2 cm/s. At what rate is the area decreasing when the area is 100cm^2?
Stephen La Rocque lui répond.
License plates and poker hands 2009-03-14
CC pose la question :
You have a license plate it can have 6 numbers/letters you can use the numerals 0-9 and the letters A-Z how many combos are possible and how did you figure it out?

Question 2,

Your dealt an Omaha hand You have KKKQQ, how many different hands can consist of the same cards.

Harley Weston lui répond.
Express 13 mills as a decimal part of $1.00. 2009-03-13
Kenneth pose la question :
Hello:

I read the following in an old business mathematics textbook: "Express 13 mills as a decimal part of $1.00."

I can determine the answer as follows: There are 1000 mills in or per $1.00. 13 mills divided by 1000 mills/$1.00 equals $0.013, the answer.

My question is as follows: What does "...as a decimal part of $1.00" indicate or represent from "Express 13 mills as a decimal part of $1.00."?

Is (a decimal part of $1.00) any decimal less than $1.00 with the decimal having a dollar sign before it.

I thank you for your reply.

Harley Weston lui répond.
A sequence 2009-03-13
Shelly pose la question :
Which sequence satisfies the rule n/4?
Stephen La Rocque lui répond.
The scale for a model train 2009-03-13
Shelly pose la question :
Lindy is planning to build a model of a train using a scale where 2 inches represents 25ft. If the train is 60 feet long, what is the length in inches that Lindy should build the model of the train?
Stephen La Rocque and Penny Nom lui répond.
Solving an equation for b 2009-03-13
ernest pose la question :
If 2b=96+b+96+1/2b solve for b?
Penny Nom lui répond.
A linear system 2009-03-13
Rasanga pose la question :
Use the row echelon form of the augmented matrix to solve the following linear system.
X1+2X2+X4=6
X3+6X4=7
X5=1

Harley Weston lui répond.
 
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