Answer:
|
|
Complete
Solution: |
Based
on the low estimate, the US population
will not double by 2100.
Based on the middle and high estimates, it
will more than double.
None of the estimates shows
a 400% increase. |
The estimated US population
in 2000 was about 275 million people. Note that a 100%
increase is the same as doubling which gives 550 million
people. An increase of 400% would mean the 2000 population
plus 4 times the population.
275,000,000 + (4 ×
275,000,000) or
5 ×
275,000,000,
which is 1,375,000,000 people.
Comparing the doubled 2000 population and
projected 2100 population, the low estimate is the only
one that is not at least doubled. None of the estimates
in the graph supports a 400% increase.
|
|
Low
Estimate |
Middle
Estimate |
High
Estimate |
2000 |
275,000,000 |
275,000,000 |
276,000,000 |
2100 |
283,000,000 |
571,000,000 |
1,182,000,000 |
Double
the 2000 Population |
550,000,000
|
550,000,000 |
550,000,000 |
400%
Increase of the 2000 Population |
1,375,000,000 |
1,375,000,000 |
1,380,000,000 |
|
|
|