2010, the U.S. population was 309.9 million and here were 128,900,000 American Facebook accounts. Approximately one-third of all Facebook accounts are wned by someone under the age of 25. How many acebook users in 2010 were under 25? Write your answer in scientific notation, with the antissa rounded to 1 decimal place.

Q: 843,000 are in a workforce (people employed and unemployed). If 8.96% are unemployed, How many…

A: Total workforce = 843,000  Unemployed % = 8.96%

Q: According to the Recording Industry Association of America, from 2003 to 2004 , audio cassette sales…

A: The given data is: From 2003 to 2004, audio cassette sales dropped by 78.2 % to 23.6 million To…

Q: 2020, the population of Ethiopia was 1.65 times as large as the population of Thailand. We can also…

A: Given query is to find the population of Ethiopia in terms of percentage of population of Thailand.

Q: Mavis and Travis discuss strategies for estimating and comparing 61,000 and 29,000. Mavis says she…

A: Let's compare the numbers by Mavis' method first. According to Mavis, each number is rounded to its…

Q: Suppose a person lost $17 and won 18 in the same day. What will be the net loss perceived by the…

A: The objective of the question is to calculate the net loss perceived by a person who lost $17 and…

Q: Howard county has a population of 274,000 people, which increases by 15% every year due to a growing…

A: Given:  Howard county has a population of 274,000 people which increases by 15% every year To find:…

Q: A scientist determined that the bones from a mastodon had lost 53,8% of their carbon-14. How old…

A: Given: A scientist determined that the bones from a mastodon had lost 53.8% of their carbon-14.…

Q: To estimate the population in a rookery, 4965 fur seal pups were captured and tagged in early…

A: Since the problem consists of three variables, applying capture-recapture method i.e, kn2≈n1N n1…

Q: If an earthquake measures 5.3 on the Richter Scale, what is the intensity of this earthquake,…

A: Answer :- Given R=5.3  We have to find I=?

Q: The average age of a group of six men is 42.If the youngest man leaves , the new average is 46. What…

A:

Q: The Ran Civilization, based on history books, started in 753 BCE and it ended in 476 AD. How long…

A:

Q: Indiana's population has increased by 9.5% since 2000, when it was about 6 million people. What is…

A: In 2000 population of Indiana's be 6 million people. That is there are about  6,000,000 people  at…

Q: A recent survey found that 79% of Americans use the Internet. If a city has a population of 76,000,…

A: Population of city, p=76,000 Percentage of population that uses internet is 79%.

Q: One earthquake has a Richter scale reading of 5.1. Another is one-thousandth as strong. What is its…

A: It is given that One earthquake has a Richter scale reading of 5.1 and another is one-thousandth as…

Q: Can someone help me with this problem?   People who are 65 years of age or older make up 13.1% of a…

A: The percentage of 65 years or more than it is 13.1%.Total population of this age group is 32.1…

Q: If 5.2% of the 200 million adult Americans are unemployed, how many adult Americans are unemployed?…

A:

Q: A company recently downsized its number of employees by 35%. If there are still 78 employees, how…

A: Let the number of employees prior to layoffs be x. 35% layoff occurred which means 35% of x number…

Q: In mid-2016, the world's population was about 7.4 billion people. The population of the United…

A: Given Data :  World's population = 7.4 billion  OR  World's population = 7.4*1000 = 7400 million…

Q: The use of social media has grown rapidly. According to one report, about 1.2 million users of…

A: Given that, according to one report, about 1.2 million users of social media via mobile devices were…

Q: A sample of music has 18 beats in the first 10 seconds. The song has beats per minute.

A:

Q: The Ran Civilization, based on history books, started in 753 BCE and it ended in 476 AD. How long…

A: We will add the years of BC to the years of AD to obtain the duration.

Q: The number of people applying for free financial aid has gone up in the past decade by 6.74%. If the…

A: Given Data: Change in percentage=0.0674   Number of people that used to apply=9720000

Q: f 264.000 swiss citizens are currently unemployed which equals 3.3% of the countries working force,…

A: If 3.3% of the working force equals 264,000 unemployed Swiss citizens, then we can calculate the…

Q: In 1960 Mexico’s population was approximately 35 million. By 2010, it had grown to approximately 112…

A: To calculate population density, you can use the formula: