Science & Mathematics - 24 October 2007

Two friends Alich and Delich use the following code number system in their business for the purpose of security:

They use 10, 9, ..., 1 for 1, 2,....,10 respectively; 20, 19, ..., 11 for 11, 12, ..., 20 respectively; 30, 29,...2l for 21, 22,..., 30 respectively; and so on. Alich told Delich "I bought a rim of paper for Rs 12100 and sold the same for Rs 12095".... What was the actual loss or gain incurred by Alich ?

(1)Gain ,Rs 5
(2)Gain, Rs 4
(3)Loss, Rs 4
(4)Gain , Rs 13

here is the solution and my doubt
http://docs.google.com/Doc?id=dc83hzcs_205cgt77n

2007-10-24 15:01:17 · 1 answers · asked by calculus 1 in Mathematics

Hi, I'm doing a high school "case study" project and I need to determine a diagnosis for my case. To make a long story short, my patient had a pH blood level test done and the results came back indicating it was high. What does that mean? Does that suggest an infection, or maybe cancer?

What causes a basic change in pH? (in the blood)

2007-10-24 14:59:35 · 10 answers · asked by defefesd 1 in Medicine

2007-10-24 14:57:16 · 12 answers · asked by I hate Hillary Clinton 6 in Geography

and where does cell come from?
how do cells live in living things?
why do living things have cells?

thanks for answering;)
have a nice day;D

2007-10-24 14:55:18 · 2 answers · asked by TeeTee 1 in Biology

What is bronchodilator medication? What can it determine?

2007-10-24 14:51:12 · 4 answers · asked by defefesd 1 in Medicine

I don't know the exact origins of the doom prophecy for 2012, but after debunking these "alignment" claims, I have discovered something I didn't know before.
Sure, the ecliptic and the galactic equator intersect at two points in Sagittarius. The galactic center is about 5 or 6 degrees away. Not impressive. And this "alignment" occurs every year. But what I discovered is that the intersection of these two planes occurs *right* on the winter solstice, maybe even within a couple of *hours* of it.
Now, imagine someone poring over charts and old calendars and seeing this, apparently corresponding with the last day of the Aztec calendar. Sure, the person should have asked some questions about it, but if they didn't know this happens every year, I could see why doom-diggers would flip out. Is this what got them all excited? Well at least it wasn't a total waste. I learned something.

2007-10-24 14:49:53 · 10 answers · asked by Brant 7 in Astronomy & Space

2007-10-24 14:48:50 · 7 answers · asked by Sacrificial Lamb 4 in Mathematics

if yes- where?

2007-10-24 14:48:10 · 3 answers · asked by me. 1 in Biology

2007-10-24 14:46:42 · 5 answers · asked by Jake 1 in Biology

Is there a way to save them? I know, I know...Americans eat cows and pigs. But, cows cant bond with humans like dogs. Dogs grow up wth you. God gave us cows to eat and get milk. He labled dogs as "mans best friend." Why do other countries eat dogs? Do you eat dogs? What kind of dogs do those people eat? Can I save them?

2007-10-24 14:45:33 · 14 answers · asked by Joey Crawford is love 6 in Zoology

I have this extra credit question to do in science and it is "what is dark matter and how far away is it from us (humans)?" I know what dark matter is, I just need the approximate distance.

2007-10-24 14:42:48 · 7 answers · asked by tracknsk8ing_ohyeah 1 in Astronomy & Space

2007-10-24 14:41:01 · 3 answers · asked by John G 1 in Biology

and how many miles of coast out to sea does castro and the cuba people own around cuba's island and can or have they drilled for oil on their land and sea areas., ....and have they drilled there lately?...is this one of their natural resources?

2007-10-24 14:40:47 · 1 answers · asked by Anonymous in Geography

half angle identity 5pi/12

ne 1 know how to work this out?

2007-10-24 14:40:34 · 2 answers · asked by PiNk-PrInCeSs 3 in Mathematics

2007-10-24 14:40:31 · 7 answers · asked by Anonymous in Earth Sciences & Geology

How much of a 40% antifreeze solution must a mechanic mix with a 70% antifreeze solution if he needs 31 gallons of a 50% antifreeze solution?

- i kno its easy i just forget the process, thanks

2007-10-24 14:39:14 · 2 answers · asked by Anonymous in Mathematics

2007-10-24 14:33:44 · 9 answers · asked by jordancross17 1 in Chemistry

the question below mine, its way more interesting

2007-10-24 14:33:22 · 3 answers · asked by Jiimy J 1 in Astronomy & Space

2007-10-24 14:32:12 · 19 answers · asked by Anonymous in Astronomy & Space

If I was to get a BS in Enviromental Science with an emphasis on atmospheric science, could I be accepted into the NASA astronaut program? What if I got that BS degree, then mastered in atmospheric science? Thanks

2007-10-24 14:31:50 · 2 answers · asked by kyle77017 2 in Earth Sciences & Geology

How do you find the decimal notation of a fraction? (My question is "Find the decimal notation of 19/16)

2007-10-24 14:29:16 · 3 answers · asked by kelleidoscope7 1 in Mathematics

2007-10-24 14:27:43 · 3 answers · asked by sal p 1 in Earth Sciences & Geology

2007-10-24 14:24:08 · 1 answers · asked by mhicks04 1 in Mathematics

2007-10-24 14:19:19 · 6 answers · asked by yagrlla 1 in Biology

I have an experiment to neutralize CaCO3 with HCl by titration (titrationg HCl into a CaCO3 solution). I dissolved an antacid tablet with 1000mg of CaCO3 in it into water and according to my calculations it would take about 167mL of 0.030mol/L hydrochloric acid to neutralize it (used phenophthalein as an indicator- waited for it to turn from pink in the CaCO3 solution back to colorless). However when I actually did the titration my titration values ranged from 1.2 mL-2.1mL with the consistent values at about 1.9 mL, well short of what I expected. Does anyone know if there is some sort of hidden reaction or something which causes results to go weird? For my stoich calculation i used CaCO3 + HCl --> CaCl2 + H20 + CO2
thanks

2007-10-24 14:18:00 · 3 answers · asked by snorlax_nick63 2 in Chemistry

Factor and Reduce
(4x^4 – 8x^3 – 60x^2) / (4x^4 – 100x^2)
thankyou

2007-10-24 14:17:52 · 5 answers · asked by mormar 1 in Mathematics

What will happen to us all if we do not have sufficient youth to maintain current systems such as hospitals, civil servants, administration, food supply, commerce...and even....the net administrators in the next 40 years?

2007-10-24 14:16:43 · 2 answers · asked by lere 3 in Other - Science

hmm?

2007-10-24 14:13:56 · 8 answers · asked by splatterpunk 2 in Astronomy & Space

2007-10-24 14:10:26 · 4 answers · asked by Anonymous in Mathematics

its for extra credit and i want to try . so if u are 100% sure plz post

2007-10-24 14:07:56 · 2 answers · asked by hi 2 in Mathematics