what do you mean by parts per million?
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Science please help
List and briefly outline the six different periods into which the Paleozoic era is divided. The six periods: 1:Cambrian, which was 545 million years ago. 2:Ordovician, which was 490 million years ago. 3:Silurian, which was 445 million years ago.

Science
Why is it rare for the soft parts of an organism to become a fossil? A. the soft parts take a long time to decay. B. the soft parts can be eaten by other animals.* C. the soft parts cannot be buried in sediment. D. the soft parts form petrified fossils.

Intermediate Accounting
cheery Company follows IFRS for its financial reporting. On January 1, 2015 Cheery issued $250 million of 10year convertible notes that pay interest at 5% annually. Investors pay $250 million for the notes even though the company's credit risk at the time

chemistry
Calculating Parts per million Helium gas, 3.0 x 10^4 is dissolved in 200.0 g of water. Express this concentrartion in parts per million.

Chemistry
1. What is the percent by mass of a solution that contains 50 grams of solute dissolved in 200 grams of solution? What is the concentration of the same solution in parts per million? 2. What is the percent mass of a solution that contains 75 grams of salt

World History
Read the summary. The earliest humans originated in northern Europe (1) and traveled south via land bridges to Asia and Africa (2). As people spread throughout the world, a shift from huntergather to farming occurred (3), which led to increased food

Math
National Oil Company reported a net loss last year of $14 million. This year their net gain is $65 million. How much more money did they make this year than last year? A) $79 million B) $65 million C) $14 million D) $51 million***

Math
A machine takes 4.2 hours to make 7 parts. At that rate, how many parts can the machine make in 28.8 hours? Round answer. 1)48 parts 2)41 parts 3)172 parts 4)17 parts I think #1. Thanks

Algebra 2
A country's population in 1991 was 15 million. In 2001 it was 16 million. Estimate the population in 2005 using exponential growth formula. Round your answer to the nearest million.

science PLEASE CHECK MY ANSWERS
1. why is it rare for the soft parts of an organism to become a fossil a. the soft parts take a long time to decay. b. the soft parts can be eaten by other animas. c. The soft parts cannot be buried in sediment.>>>my answer d. the soft parts from petrified

History
Read the summary. Rome’s empire covered 2.5 million square miles (1). But this large territory meant longer frontiers to defend and more lands to control (2). To flesh out the army’s dwindling ranks, Roman Senators declared that all ablebodied men

math
XYZ Oil Company has consistently lost $8 million each year for the past 7 years. Express the total loss as an integer. A) $8 million B) $8 million C) $48 million D) $56 million

math
please check my answers below and correct me if i am wrong please 1. At Lexi Corp., sales revenue is $20 million, the cost of goods sold is $14 million, operating expenses are $3 million, and income taxes are $1 million. What is the company's operating

Chemistry
Can someone try this out so I can see if I'm correct? An 870 g river water sample contains 2 mg of cadmium. Express the concentration in parts per million. I got 2.30 ppm.

chemistry
A one thousand liter sample of water contains one gram of iron (III) ions. What is the concentration of Fe3+(aq) in parts per million?

Statistics
A household appliance manufacturer wants to analyze the relationship between total sales and the company's three primary means of advertising (television, magazines, and radio). All values are in millions of dollars. They found the following regression

Math
Latoya's Receipe 2 1/5 parts cranapple juice 1 4/5 parts lemonade ____________________________________________________________ Parker's Recipe 2 1/2 parts cranapple juice 3 1/2 parts lemonade For each recipe, write a ratio that compares the number of parts

Math(Probability)
Students took n = 35 samples of water from the east basin of Lake Macatawa and measured the amount of sodium in parts per million. For their data, they calculated notation bar x= 24.11 and s^2= 24.44. Find an approximate 90% confidence interval for μ ,

chem
The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 (one million) parts of solution. Mathematically by mass: ppm = µg solute / g solution = mg

MATH
WHAT IS THE BELOW PROGRAM ACQUISTION COST OF THE SYSTEM?( COST TYPES COST (IN MILLIONS OF DOLLARS) RESEARCH, DEVELOPMENT 400 MILLION PROCUREMENT EQUIPMENT 800 PROCUREMENT SUPPORT 100 PROCUREMENT PARTS 100 OPERATIONS & SUPPORT $70,000 disposal $100 my

chemistry
If 19.7 g of CaCl2 are present in 200 mL of aqueous solution, what is the concentration in terms of the following? a. molarity 100 M CaCl2 b. weight/volume percent 0.1 % (w/v) c. parts per thousand 100 ppt d. parts per million 10E4 ppm e. parts per billion

Math
The table shows the number of people in millions who participate in 5 sports in a recent year. About how many more people swam than played soccer? A.15 million B.21 million C.4 million D.35 million B? I got 18.8 and I think it rounds to 21

Principal of Finance
The following information is available to you: travelers' checks = $1 million; coin and paper currency = $30 million; repurchase agree¬ ments and Eurodollars = $15 million; demand deposits = $25 million; retail money market mutual funds = $60 million;

Finance
Archer Daniels Midland Company is considering buying a new farm that it plans to operate for 10 years. The farm will require an initial investment of $12.00 million. This investment will consist of $2.60 million for land and $9.40 million for trucks and

Finance
Rita Gonzales won the $62 million lottery. She is to receive $2.8 million a year for the next 20 years plus an additional lump sum payment of $6 million after 20 years. The discount rate is 14 percent. What is the current value of her winnings?

math
The amount of pollution, A (in part per million), present in the air outside a factory on a recent weekday is represented by the equation A= t^2+16t+6, where t is the number of hours after 7 AM. (a) find the Times (in radical form) when there were 42

sciance
what are the definitions of these words: Solute Infer Serial Dilute Parts per million parts per billion parts per trillion epidemiology epidemic contaminate microrgansims Quantitative Chlorine risk tradeoff thanks

Finance
Rock Company acquired land 8 years ago for 2.2 million. Today it is valued at 5.8 million. Rock plans to build a new factory on the site which is estimated to cost 21.5 million plus addition building site preparation costs of 3.2 million. What is the

chemistry
If 0.60 mg of KCl is present in 3.0 L of aqueous solution, what is the concentration in terms of molarity, weight/volume percent, parts per thousand, and parts per million?

Finance
Following are selected balance sheet accounts for Third State Bank: vault cash $2 million; U.S. government securities $5 million; demand deposits $13 million; nontransactional accounts $20 million; cash items in process of collection $4 million;

chemistry
New York citys 7.9 million people have a daily per capita consumption of 173 gallons of water. how many tons of sodium flouride would be requred per year to give this watr 1 part flourine per million parts water?

chemistry
The urine of horses are mixed with an excess of hydrochloric acid, after some time, a yellowishbrown crystalline precipitate, which have an unpleasant odor, that can't be removed by simply washing with water. This new compound has the following

math
Your program has an RDT&Efunded project scheduled to start in July 2005 which is expected to take 12 months to complete. The project is expected to cost a total of $12 million (thenyear dollars), with cost expected to be incurred at a rate of $1 million

statistics
Your program has an RDT&Efunded project scheduled to start in July 2005 which is expected to take 12 months to complete. The project is expected to cost a total of $12 million (thenyear dollars), with cost expected to be incurred at a rate of $1 million

Algebra
The function w(x) = – 0.01x^2 + 0.27x + 8.60 can be used to estimate the number of selfemployed workers in the U.S., in millions, x years after 1980. How many selfemployed workers were there in the year 1995? A. 9.8 million B. 10.4 million C. 11.15

chemistry
what do you mean by parts per million?

MATH
The life cycle cost of the BLUEBIRD system is $600 million. The program acquisition cost is $400 million and the development cost is $150 million. There are no facilities costs. What is the procurement cost of the BLUEBIRD system? $200 million $150 million

Society and Tech
The current global growth pattern adds about __________ people to the world every year. 90 million 200 million 695 million 1 billion is it 90 million?

math
Date US Population Jul 1, 2012 313.85 million Jul 1, 2011 311.59 million Jul 1, 2010 309.35 million Jul 1, 2009 306.77 million Jul 1, 2008 304.09 million Jul 1, 2007 301.23 million Jul 1, 2006 298.38 million Jul 1, 2005 295.52 million Jul 1, 2004 292.81

Health
How many American adults does OCD affect each year? A. 1.2 million B. 2.2 million C. 3.2 million D. 4.2 million I put D and missed it. D:

algebra
(1) If the population of a city was 2 million in 1995 and growing at a rate of 6.4%, what will the population be in the year 2000? a. 2.5 million b. 2.7 million c. 10.64 million d. 43.6 million

health
How many American adults do anxiety disorders affect each year? A. 10 million B. 25 million C. 40 million D. 65 million c?

chemistry
what is 2.5% vapor expressed in parts per million?

Math
Your program has a proposed RDT&Efunded project scheduled to start in January 2005 which is expected to take 16 months to complete. The project is expected to cost a total of $16 million (thenyear dollars), with cost expected to be incurred at a rate of

Finance
Your program has a proposed RDT&Efunded project scheduled to start in January 2015 which is expected to take 16 months to complete. The project is expected to cost a total of $16 million (thenyear dollars), with cost expected to be incurred at a rate of

healt
How many American adults does OCD affect each year? A. 1.2 million B. 2.2 million C. 3.2 million D. 4.2 million B?

finance
A bank has currency and coins equal to $20 million in its vaults. It has securities worth $10 million, has borrowings equal to $5 million, and has given out loans equal to $2 million. It also has deposits with the Federal Reserve equal to $4 million. The

Finance 100
The following information is available to you: travelers' checks = $1 million; coin and paper currency = $30 million; repurchase agreements and Eurodollars = $15 million; demand deposits = $25 million; retail money market mutual funds = $60 million;

strayer university
P5. The following information is available to you: travelers’ checks _ $1 million; coin and paper currency _ $30 million; repurchase agreements and Eurodollars _ $15 million; demand deposits _$25 million; retail money market mutual funds _ $60 million;

Bio
what parts of the human body might become vestigial in the next million years? Explain

FIN 100
P5: The following information is available to you: travelers’ checks = $1 million; coin and paper currency = $30 million; repurchase agreements and Eurodollars = $15 million; demand deposits = $25 million; retail money market mutual funds = $60 million;

health
About how many teenagers are in and out alcoholics Answer Are One million Two million Three million Half a million Thanks

science
helium gas, 3.0 x 104 g dissolved in water, express this concentration in parts per million.

Math
The distribution of the number of viewers for the American Idol television show follows a normal distribution with a mean of 27 million and a standard deviation of 10 million. A: Have between 29 and 37 million viewers? B: Have at least 21 million viewers?

chem
if the saturation of carbon is 12 and nitrogen is 6 what is the tempature of 200ml in 450 g containers in parts per million

chemistry
A sample of 300.0g of drinking wtare is found to cntain 38 mg Pb. What is this concentration in parts per million?

algebra
Translate to inequality: The maximum safe exposure limit of formaldehyde is 2 parts per million

chemistry
What is the concentration, in parts per million (ppm), of an aqueous solution of copper sulfate II (CuSO4) at 12% by weight?

World History
Read the summary. Babylon was in the heartland of Mesopotamia, the site of the First Agricultural Revolution (1). Based on cuneiform writings on clay tablets, researchers know that farm products included sesame, barley, and dates, as well as cattle and

Accounting
Appalachian Register, Inc. (ARI) has current sales of $50 million. Sales are expected to grow to $75 Million next year. ARI currently has accounts receivable of $10 million, inventories of $15 million and net fixed assets of $20 million. These assets are

Politics.
The federal government employs approximately how many people? 1. 12 million 2. 2.52.7 million 3. 34 million 4. over 5 million Answer 2.5 to 2.7 .(Am i right) Question2: Policies that use spending and taxing to accomplish policy goals are: 1. Foreign

Finances
Faulkner's Fine Fries Inc. (FFF) is thinking about reducing its debt burden. Given the following capital structure information and an expected EBIT of $50 million (plus or minus 10 percent) next year, should FFF change their capital structure? Current

finance
Faulkner's Fine Fries, Inc. (FFF), is thinking about reducing its debt burden. Given the following capital structure information and an expected EBIT of $50 million (plus or minus 10 percent) next year, should FFF change their capital structure? Current

finance
Thelma and Louie's Inc started the year with a balance of retained earnings of $547 million and ended the ear with retained earnings of $594 million. The company paid dividends of $37 million to the preferred stockholders and $77 million to common

HEALTHCAREFINANCE
A HOSPITALREPORTED NETINCOMEFOR 2007 OF 2.4 MILLION ON TOTALREVENUES OF 30.MILLION.HAD A DEPRECIATION EXPESENETOTAL OF 1 MILLION SO WHAT IS THE TOTAL EXPENSE FOR2007?

health
How many American adults are affected by specific phobias each year? A. 920,000 B. 13.2 million C. 19.2 million D. 26.2 million c?

Corporate Finance
Based on the current fianancial statements total liabilitie are 8 million and interest expensed for the coming year is 1 million. What is the cost of debt? Assuming "liabilities" are all debt, which is usually the case, then (1 million interest)/(8 million

chemistry
Calculate the concentration in parts per million (ppm) of the solute in each of the following aqueous solutions (a) 0.00500 g of sodium chloride in 850 mL of solution

corporate finance
Archer Daniels Midland Company is considering buying a new farm that it plans to operate for 10 years. The farm will require an initial investment of $12.00 million. This investment will consist of $2.60 million for land and $9.40 million for trucks and

Statistics
In a shipment of 21 parts, four of the parts are defective. If three parts are selected at random without replacement, find the probability that : a.) All three parts selected are defective. 4/21*3/20*2/19=.003 b.) None of the tree parts selected are

Health
How many new STD cases are there each year? A. 30 million B. 15 million C. 1 million D. 500,000 B?

College Mathematics
Guys, could you please help me with this problem? I'm a bit lost. Consider a population that begins growing exponentially at a rate of 5% per year and then follows a logistic growth pattern. If the carrying capacity is 100 million, find the actual growth

Chemistry
The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 parts of solution. (Both solute and solution are measured using the same units.)

Statistics
Your program plans to acquire a total of 600 end items costing $535 million over a fiveyear period. The first production contract is to be awarded in FY04. The number of items to be procured (not delivered) each year and their estimated cost (in thenyear

Statistics
A bin of 35 manufactured parts contains 6 defective parts and 29 nondefective parts. A sample of size 5 parts is selected from 35 parts. Selected parts are not replaced. How many different samples are there of size five that contain exactly 2 defective

chemistry
Convert the concentration of SO2 from 80µg/m^3 to units of parts per million. The gas has temperature of 25 degree Celsius and a pressure of 101.325 kPa.

Business
Your program plans to acquire a total of 600 end items costing $535 million over a fiveyear period (five Lots). The first production contract is to be awarded in FY14. The number of items to be procured (not delivered) each year and their estimated cost

Math
I need help not sure if I'm doing this correctly. Parts of parts: Find each of the following parts of parts without drawing a diagram for each problem explained clearly A) 2/3 of 2/7 I think it's 4/15 because your multiplying. B) 6/11 × 2/7 I think it's

Math
Imagine a country has a population of 210 million. Within the country there are 95 million people who are employed workers, 50 million people incapable of working, and 60 million people capable of working, but not actively looking. Based on this

Principles of finance
Faulkner’s Fine Fries Inc (FFF) is thinking about reducing its debt burden. Given the following capital structure information and an expected EBIT of $50 Million (plus or minus 10%) next year, should FFF change their capital structure? FAULKNER'S FINE

finance 370
How did they round this number off. Value debt310 million +110 value equity million=.738=73.8% Then Value Equity over Value Of Debt +Value of Equtiy $310 million + 110 million=0.262=26.7% How did they get these number

Chemistry
What will be the concentration if 52 milliters of a solution that is 12 parts per million in sodium chloride is diluted with enough water to make 97 millilters of solution?

stat
The emission of 10 engines is found to be: 15.6, 16.2, 22.5, 20.5, 16.4, 19.4, 16.6, 17.9, 12.9, 13.9. The mean emission must, according to regulations, be u (mean) greater than 20 parts per million. Test this at a significance level of a equal to 0.01

Chemistry
Express the concentration of a 0.0900 M aqueous solution of fluoride, F–, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.

Chemistry
How would you prepare 10.0 Liters of a solution that was 20 parts per million sodium perchlorate in water? What would be the molarity of the solution (assume density is 1.0 g/mL and 1ppm=1 mL/L)?

Chemistry
Express the concentration of a 0.0860 M aqueous solution of fluoride, F–, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.

chemistry
a sample of seawater has a density of 1.02kg/L and has the following ion in parts per million by mass, 19,000 Cl. how do you find the molar concentration of the ion?

algebra
A country's population in 1995 was 175 million. In 2000 it was 181 million. Estimate the population in 2020 using the exponential growth formula. Round you answer to the nearest million. P=Ae^kt

4 Grade
About how many people lying headtotoe are needed to strech around the earth? Is it closest to : a) 1 million; b) 25 million; c) 100 million? (Hint: The distance around the earth is approximately 25,000 miles).

Business Finance
Rita won $60 million lottery. She is to receive $1 million a year for the next 50 years plus an additional lump sum of $10 million after the 50th year. The discount rate is 10%. What is the present value of her winnings?

Fundamentals of Business Financial Management
Your program plans to acquire a total of 600 end items costing $570 million over a fiveyear period. The first production contract is to be awarded in FY04. The number of items to be procured (not delivered) each year and their estimated cost (in thenyear

statistics
The program plans to acquire a total of 600 end items costing $570 million over a fiveyear period. The first production contract is to be awarded in FY04. The number of items to be procured (not delivered) each year and their estimated cost (in thenyear

kuai or jai3
To the nearest million, the number of households in the U.S. having television sets was 4 million in 1950 and 76 million in 1980. Express the first number as a fraction of the second.

QRB
Complete the following two problems. Problem 1 The table shows the number of greeting cards that Americans buy for various occasions. Holiday/Event Cards Sold Valentine’s Day 900 million Mother’s Day 150 million Father’s Day 95 million Graduation 60

algebra
A country's population in 1993 was 116 million. In 2002 it was 121 million. Estimate the population in 2007 using the exponential growth formula. Round your answer to the nearest million. P = Aekt

college chemistry
Express the concentration of a 0.0620M aqueous solution of fluoride, F, in mass percentage and in parts per million. assume the density of the solution is 1.00g/mL.

chemistry
(ppm and ppb are sooo not easy for me to get)c A saturated solution of PbCO3 contains 0.00011 g PbCO3 in 100. g of water. What is this concentration in parts per million?

Statistics/Binomal
I really need help I do not understand how to start this problem. A machine that manufactures automobile parts produces defective parts 15% of the time. If 7 parts produced by this machine are randomly selected, what is the probability that at least 3 of

MATH
A table of the U.S. population in millions indicated in 1960 the population was 181 million, in 1970 the population was 205 million, in 1980 the population was 228 million, and in 1990, the population was 250 million. Describe the context behind how the

Chemistry
A student prepared 200mL of 0.01M solution of calcium phosphate, Can(PO4)2. What is the concentration of calcium in parts per million? Relative atomic masses Can =40, P =31, O =16