Question 762733
the world population is projected to be 6.6 billion 2040.
at that time there are expected to be approximately 2 billion more people in Asia than in Africa 
As = Af + 2
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the population for the rest of the world will be approximately 0.1 billion more than half the population of Asia 
W' = (1/2)As + 0.1
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find the projected population of Asia Africa and the rest of the world in 2040.please
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As + Af + W' = 6.6
As + (As-2) + (1/2)As + 0.1 = 6.6
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(5/2)As - 1.9 = 6.6
(5/2)As = 8.5
Asia = 3.4 billion
Africa = As-2 = 1.4 billion
Rest of world = (1/2)As + 0.1 = 1.7+0.1 = 1.8 billion
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Cheers,
Stan H.