| Year, t |
Population of Country B (millions) |
Population of Country E (millions) |
| 0 | 24 | 60 |
| 1.9 | 31.6 | 63.2 |
| 15.7 | 87 | 87 |
| 160 | 664 | 332 |
If E = 60 + 1.7t and B = 24 + 4.0t represent the
population (in millions) of two countries, E and B, then in what
year will
(a) the population of country E equals that of country B?
Answer: in 15.7 years
(b) Country E have twice as many inhabitants as B? Answer:
in 1.9 years
(c) Country B have twice as many inhabitants as E? Answer: in 160
years
Round your
answers to 1 decimal place.
Graphs and a table of the populations are below
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