Answer: the answer is sudan
Explanation:
C. They made it easier to perform calculations.
Explanation:
20 men can do 1 W in 36 days
=> 20 men can do 1/36 W in 1 day
=> 10 men can do 1/72 W in 1 day.
30 girls can do 1W in 36 days
=> 30 girls can do 1/36 W in 1 day
=> 12 girls can do 1/90 W in 1 day.
Together 10 men and 12 girls can do 1/72 + 1/90 W in 1 day
= 9/360 = 1/40 W in 1 day.
Therefore they need 40 days to do the piece of work.
Human beings have different forms of education. For example, in Western culture education is generally shared between the family and the school through demonstration and example.
Education is a term that refers to the acquisition of new knowledge. Education has been developed over time and adapted by each culture according to its customs and idiosyncrasies.
For example, in Western culture humans have developed complex educational institutions and systems that are hierarchically divided and classified by areas of knowledge.
Likewise, the entire system of life is configured around that educational system. For example, the labor system requires certain studies and specializations to access a job and people get a job depending on what they have studied.
Learn more in: brainly.com/question/17789173
A decrease or increase of a certain population can affect the food chain of an ecosystem
Lets say bugs start dying at a rapid rate in an swamp ecosystem
The frog population would then decrease because they have no bugs to eat
The frog’s predators would then decrease because of the number of frogs to eat are decreasing.
So on and so forth.
Hope this helps!
