Mathematics - 24 August 2006

2006-08-24 23:57:03 · 7 answers · asked by Anonymous

We used to have a wonderful duodecimal system.

We used to have :-

Half crowns (8 in the pound)
Florins (10 in the pound)
Shillings (20 in the pound)
Pence (240 in the pound and hence 12 in a shilling)
Half-pennies (480 in the pound)
Farthings (960 in the pound)

Just look at these numbers . They are all divisable by 2 or 4 or 8 and 10 except for the half crown. This made dealing with fractions of a pound very easy.

However, we used to have to learn funnies like 6/8 was a third of a pound and 13/4 was two thirds.

6/8 means 6 shillings & 8 pence

2006-08-24 23:54:44 · 12 answers · asked by Anonymous

Two intersecting circles with radii 15 and 20 have distance between their centres as 25.Find length of common chord.

2006-08-24 23:52:03 · 6 answers · asked by Rohit C 3

Or perhaps I shouldn't have posed the questions ?

2006-08-24 23:19:59 · 11 answers · asked by Anonymous

2006-08-24 22:43:35 · 2 answers · asked by I didn't do it! 6

my dad worked it out once

2006-08-24 22:36:52 · 44 answers · asked by Anonymous

if a room is 13x8 Foot, 16x11 Foot, 12x9 Foot and 8x9 Foot. Thanks Again I really bad at Maths, Well I am Irish!

2006-08-24 22:16:34 · 7 answers · asked by Anonymous

2006-08-24 22:01:00 · 18 answers · asked by Anonymous

2.While traveling from one station to the next, after 1 hour a piston burst. As a result the party could only proceed at 3/5 their original speed and arrived 1 hour late. If however the accident had
happened 50 minutes later, they would have arrived 40 minutes earlier than the time they did arrive
at. What is the distance between the stations?

2006-08-24 21:38:57 · 21 answers · asked by net addict 1

please show working

2006-08-24 21:00:18 · 17 answers · asked by bozza 1

Question from real analysis.

2006-08-24 20:43:03 · 5 answers · asked by Abhinav D 1

2006-08-24 20:23:39 · 7 answers · asked by pytho 1

ABC is triangle right anled at A.D is perpendicular to BC from A.AB=15,AC=20.P and Q are incentres of triangles ABD and ADC respectively.Find PQ.

2006-08-24 19:27:44 · 3 answers · asked by Rohit C 3

Two intersecting circles with radii 15 and 10 have distance between their centres as 25.Find length of common chord.

2006-08-24 19:23:28 · 5 answers · asked by Rohit C 3

ABC is A right angled triangle right angled at B with AB = 12,BC = 5.Find the radius of incircle to the triangle.

2006-08-24 19:18:23 · 5 answers · asked by Rohit C 3

2006-08-24 19:16:26 · 15 answers · asked by MLC 3

2006-08-24 18:52:24 · 11 answers · asked by Jane F 1

Area of square 144cm2.Rectangle has same perimeter as square but length is twice that of width.What is area of rectangle?

2006-08-24 18:49:25 · 11 answers · asked by Jane F 1

scientific notation

2006-08-24 18:47:40 · 6 answers · asked by emily 1

Fifty minutes ago if it was four times as many
minutes past three o'clock,how many minutes is it to
six o'clock?

Ans: Twenty six minutes.

solve this puzzle with steps. this is not an homework. it is a puzzle asked by my friends. so plz tell me how to get the answer

2006-08-24 18:35:54 · 4 answers · asked by george 4

2006-08-24 18:22:13 · 0 answers · asked by Resty P 1

I'm just a middle school student who needs your help.

If it is impossible to reach infinity and -infinity from zero, then it is also impossible to "get back" to zero from infinity and -infinity, assuming there are something located at both "points of infinity".

What I'm trying to say here is that if someone wants to travel from one point to another on a real number line, then both points must be rational and "reachable", so that he/she is able to stand on that point. Thus, the "points of inifinity" do not exist.

Am I right? Am I making sense?

2006-08-24 17:47:13 · 9 answers · asked by English Learner 2

I am working on a project in which I need to show progress towards completion. The project is broken in to five (5) milestones. Each milestone may have anywhere from two (2) to seven (7) sub-projects. Each sub-project may have anywhere from two (2) to ten (10) tasks. We have determined that each milestone, sub-project, and task is evenly weighted; that is the number of events for each specific task, sub-project, or milestone should not be a factor when progress is reported.

I am concerned that I present progress that reflects the actual status of my project. For example, I have three events. The MEAN is 58%, whereas the MEDIAN is 50%. Which is the right number to provide as my status?

I am almost out of characters, so I will present the problem I am working on in a seperate question.

Thank you to all the math wizzes out there for helping. I am envious of your aptitude for math!

2006-08-24 17:46:59 · 11 answers · asked by asking-a-question 3

1- Find the product : (4x - 3)(x + 8)
2- Factor : 2x^2 - 5x - 18
3- Find the square : (9 - b)^2
4- Factor : 169 - 144c^2
10 Points for best answer Thank u

2006-08-24 17:39:24 · 3 answers · asked by lola_a12 1

she really loves him she never felt this way about anyone before i cant tell her cause she will think that i fall for every guy she likes which is kinda true what could i do i cant tell her please help!!!ps shes my half sister we dont live with eachother but we are mad close

2006-08-24 17:32:03 · 17 answers · asked by jaz 3

We all know the sign laws for multiplication:
Positive times positive is positive
Negative times positive is negative
Negative times negative is positive.

It's easy to proove the first two. But how can the last one be prooved in an inductive way?

Thanks,

2006-08-24 17:26:56 · 12 answers · asked by nwitem 1

can anyone help me sove this step by step. sqaure root of x plus y divided by square root of x minus y

2006-08-24 17:21:16 · 8 answers · asked by Sams 2

2006-08-24 16:52:06 · 3 answers · asked by mstrobert 5

please help me with my homework?............

2x+2y+2b(squar)-4b^3=0
how do u do this my the factoring method? thank u

2006-08-24 16:49:50 · 3 answers · asked by hopar 2

Im really need to know a solution for a math problem, but i dont know how to solve it, and i was just wondering if there is a page on the Internet where u can go, type the problem and it'll automatically solve it by itself, so you can learn how to do it.
Plz help it's really important

2006-08-24 16:47:25 · 11 answers · asked by Fez 2