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: 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: 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: 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: 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: 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: 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 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: 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: