The rule of 70 is a technique used to forecast how many years would take to a variable to double its value. It consists on dividing number 70 by the growth rate of the variable of interest, which in this case is the GDP of countries A and B.
According to the rule of 70, let's compute how long will take for the GDP of each country to double:
- Country A: 70/2.8= 25 years
- Country B: 70/1.4= 50 years
As the growth rates are constant, it is possible to compute the exact value of the GDP of each country in 100 years time using the number of years for output duplication.
- Country A duplicates its growth every 25 years. Hence, it will happen 4 times in 100 years. In year 25, the output will be $100,000. In year 50, it will duplicate again and reach $200,000. The third duplicate will take place in year 75 and GDP will sum $400,000. Finally, in year 100 it will duplicate one last time and country A will end up the century with a GDP per capita of $800,000.
- Country B duplicates its growth every 50 years. Therefore, it will happen twice in 100 years. In year 50, the output will be $100,000. In year 100, the last duplicate will take place, and country B will end up with a GDP per capita of $200,000.
I believe the answer is: Usman and Fodio
Both these scholars wrote hundreds of books for African people regarding, government, culture, religion, and social science.
These knowledge has been used for the past Three centuries after their arrival, by people in western africa as a foundation to built their islamic states.
Answer:
Literacy enables:
- Documenting knowledge and history
- Understanding more complex ideas
- Developing all the aspects of our education
- Team and group work and development
Explanation:
Literacy is the ability of reading and writing. It is necessary for the development of society as well as for individual development because:
- <u>A society that is not literate can’t document anything</u>. This means, everything is based only on oral knowledge and history, which can’t be documented for later generations and therefore can’t progress from what is currently in the head of the one particular person. While people can orally share that knowledge, it is, like all our memories, temporary, insecure, and limited.
- <u>Literacy is required to understand any more complex tasks than what is here and now</u>. Literacy is not only basic reading and writing of the alphabet but understanding complex ideas and decoding the concepts. If we need to do anything that requires more time learning (which is any of the university requires professions, for example),<u> we depend on the ability to read, write, and note the progress. </u>
- Language is not the only thing depending on literacy – a<u>ll the aspects of education depend on the ability to read and write</u>. There is no development in knowledge and education of the individual who is not literate.
- <u>Literacy also enables better teamwork and group development</u>. If people can write down their thoughts, ideas, concepts, etc, and others can read it, edit, and add up, <u>it can seriously benefit the group dynamics and lead to group inventions</u>. The sharing of written concepts and ideas is one of the keys to development.
I think it is D. the middle kingdom.
