28) From a historical perspective, the world went through over the past two centuries. Global literacy rates have been climbing over the course of the last two centuries, mainly through increasing rates of enrollment in primary education. Despite all these worldwide improvements, some countries have been lagging behind, mainly in sub-Saharan Africa, where there are still countries that have literacy rates below 50% among the youth. As of now the total population of students is estimated to be 720 million. The following pie chart depicts the number of students nationwide. a) What is the number of African students?
b) How many students are there in America?
c) How many students are there in India than in America?
b) How many students are there in America?
c) How many students are there in India than in America?
Answers & Comments
Answer:
28) From a historical perspective, the world went through over the past two centuries. Global literacy rates have been climbing over the course of the last two centuries, mainly through increasing rates of enrollment in primary education. Despite all these worldwide improvements, some countries have been lagging behind, mainly in sub-Saharan Africa, where there are still countries that have literacy rates below 50% among the youth. As of now the total population of students is estimated to be 720 million. The following pie chart depicts the number of students nationwide. a) What is the number of African students?
b) How many students are there in America?
c) How many students are there in India than in America?
Step-by-step explanation:
28) From a historical perspective, the world went through over the past two centuries. Global literacy rates have been climbing over the course of the last two centuries, mainly through increasing rates of enrollment in primary education. Despite all these worldwide improvements, some countries have been lagging behind, mainly in sub-Saharan Africa, where there are still countries that have literacy rates below 50% among the youth. As of now the total population of students is estimated to be 720 million. The following pie chart depicts the number of students nationwide. a) What is the number of African students?
b) How many students are there in America?
c) How many students are there in India than in America?
Step-by-step explanation:
So , first (a)
The central angle of Africa is 45° .
So , let the number be x.
x
--- × 360 = 45°
720000000(total number )
:.x × 360 45
----- =
72000000
= x × 2000000 = 45
x = 45 ×2000000
:. x = 90000000
Therefore , Number of African Students is 9,00,00,000.
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(b) Central Angle of America is 90° .
Now from our previous equation, we can state that 720000000 ÷ 360 is 2000000
so ,
x × 2000000 = 90°
x = 2000000
-----------------
90
:. x = 22222.222222
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(c) For this one , Find India's number just by using the same method as the two before and then subtract .