Science & Mathematics - 1 November 2006

In 1999, a group of coin investors bought 50 dimes at an average cost of $8 each, and 100 silver dollars averaging $23 each. In 2000, the investors sold their coins. They made a 20% profit on the dimes and a 10% profit on the silver dollars. How much total profit did they make?

2006-11-01 11:49:14 · 18 answers · asked by lkolka 3 in Mathematics

What are the formulas for the following compounds:
potassium iodide
magnesium hydroxide
aluminum sulfate
chlorine heptoxide

If you give me the answers I should be able to figure out how you got them but if you would like to take the time to explain how you reached those conclusions it would be really helpful. Thanks

2006-11-01 11:48:18 · 4 answers · asked by Anonymous in Chemistry

2006-11-01 11:47:30 · 3 answers · asked by Anonymous in Astronomy & Space

In the winter, cold humid air from the Pacific Ocean blows across the cold land os southern Alaska.

2006-11-01 11:46:14 · 4 answers · asked by Danica Diamond™ 3 in Weather

2006-11-01 11:45:31 · 8 answers · asked by jen 1 in Earth Sciences & Geology

Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film
developer that holds 3 qt. How much of the developer remains?

2006-11-01 11:44:51 · 7 answers · asked by CrazyBlueEyedGirl13 1 in Mathematics

2006-11-01 11:42:52 · 2 answers · asked by twinkle 1 in Chemistry

I,ve heard that sharks are but, bees kill more people right?

2006-11-01 11:41:43 · 15 answers · asked by Anonymous in Zoology

All of the answers are elements on the periodic table.
1.Lone Ranger's Horse.
2.Motto for an oil well-drilling company.
3.A ridiculous prisoner.
4.What do you do before you brand a steer.
5.A popular red or pink flower found in pots.
6.The kitchen on a Roman ship.
7.A roll shaped like an automobile.
8.A person from Troy who only goes out after dark. (nitrogen?)
9.What s fatally wounded person says.
10.Boards that have nailed down to walk upon.
11.The ruler of Davy Jones' Locker.
12.What kings, queens, princes, and princesses do.
13.A name for a person who talks too much.
14.Upper class of Troy.

theres a word bank so the ones i have left are:

bismuth
boron
bromine
carbon
curim
gadolinium
gallium
hydrogen
iodine
neptunium
nitrogen
phosphorus
scandium
selenium
silver

2006-11-01 11:39:04 · 3 answers · asked by BRE 2 in Chemistry

2006-11-01 11:38:24 · 1 answers · asked by pixela007 2 in Chemistry

1The inheritance of blood types in humans can be explained by (A)Mendelian genetics*one gene pair* (B)Linked genes(C)simple Dominance (D)multiple alleles(E)polygenic inheritance 2.The hereditary material found in eukaryotic cells is(A)DNA(B)rRNA(C)mRNA(D)tRNA(E)ATP 3.Messenger RNA is produced in the (A)cytoplasm(B)ribosomes(C)nucleus(D)endoplasmic reticulum(E)lysosme... here are the answers that i think they are but not sure
1(A)Mendelian genetics*one gene pair*2(C)mRNA3(C)nucleus

2006-11-01 11:38:05 · 3 answers · asked by Anonymous in Biology

4(NH3) + 5(O2 )-----> 4NO + 6(H2O)
2NO + O2 -------> 2NO2
3(NO2) + H2O -----> 2(HNO3) + NO

how can i identify the oxidizing and reducing agent in each redox reaction?

2006-11-01 11:36:57 · 1 answers · asked by pixela007 2 in Chemistry

The protein in question is the enzyme Bromelin.
I need some heplful websites if anyone can suggest any.
Thanks

2006-11-01 11:35:56 · 2 answers · asked by bunches999 4 in Botany

What's a good definition for a mutational disorder?

2006-11-01 11:35:04 · 5 answers · asked by Anonymous in Biology

a uniform rod of length L is free to pivot around an axis through its upper end. if it is released from rest when horizontal, at what speed is the lower end moving at its lowest point?

(Hint: the gravitational potential energy change is determing by the change in height of the center of gravity.)

2006-11-01 11:33:55 · 1 answers · asked by Trevor M 1 in Physics

i need a formula to show how to answer that

2006-11-01 11:32:42 · 5 answers · asked by Nick r 1 in Mathematics

2006-11-01 11:31:42 · 0 answers · asked by Anonymous in Medicine

5 (x+3) = 4 (x-4)

2006-11-01 11:30:44 · 6 answers · asked by scott c 1 in Mathematics

The maximum speed of the Tupeloev Tu - 144 airliner is 694 m/s what is this speed in kilometers per hour?

On a certain day, the exchange rate was 60 U.S. dollars for 50 euro. How many U.S. dollars were 70 euro worth that day?

An envirornmental scientist wants to estimate the number of carp in a pond. He captures 100 carp, tags all of them, and releases them. A week later, he captures 85 carp and records how many have tags. His results were 20 tagged, and 65 not tagged. Write and solve a proportion to estimate thenumber of carp in the pond.

2006-11-01 11:30:06 · 2 answers · asked by Anonymous in Mathematics

okay ladies and gentlemen, i need some help with homework. I have no idea how to do this physics problem, i would appreciate some help. here it is...

a painter (mass 61kg) is walking along a trestle, consistiing of a uniform plank (m=20kg l= 6.00m) balanced on two saw horses. each is placed 1.40 m from an end of the plank. a pain bucket (m=4.0kg,diameter 28cm) is placed as close as possible to the right hand edge of the plank while still having the whole bucket in contact with the plank.

question:

a. how close to the right hand edge of the plank can the painter walk before tipping the plank and spilling the paint?

b. how close to the left hand edge of the plank can the painter walk before causing the plank to tip? (hint: as the painter walks toward the right handed edge the plank tips clockwise, what is the force acting upward on the plank from the left hand sawhorse support?)

2006-11-01 11:29:58 · 2 answers · asked by Trevor M 1 in Physics

help me plz!

2006-11-01 11:29:11 · 2 answers · asked by coolness 2 in Weather

2006-11-01 11:28:58 · 10 answers · asked by Sam C 1 in Mathematics

Since the Sun is always having Nuclear Explosions on it's surface where does the matter end up that escapes into space?

2006-11-01 11:28:53 · 5 answers · asked by Anonymous in Astronomy & Space

2006-11-01 11:28:13 · 9 answers · asked by Anonymous in Astronomy & Space

2006-11-01 11:28:12 · 1 answers · asked by la peruana 1 in Chemistry

2006-11-01 11:24:35 · 7 answers · asked by Anonymous in Earth Sciences & Geology

Like what happens when you try to light a match in really cold weather the flame does not last very long on it's own.

2006-11-01 11:23:23 · 11 answers · asked by Anonymous in Astronomy & Space

2006-11-01 11:20:56 · 2 answers · asked by tweety_mm19 2 in Geography

2006-11-01 11:20:23 · 5 answers · asked by narcissa 5 in Mathematics

2006-11-01 11:20:18 · 4 answers · asked by kadarrius t 1 in Earth Sciences & Geology