Write an exponential function to model the following situation.
1 answer:
Answer:
For 15 years -
After 15 years -
Step-by-step explanation:
We have that,
Initial population is 110,000 which grows by the rate 4% i.e. 0.04 for 15 years.
Since, the exponential growth is given by ,
where P is the initial population, r is the rate of interest and x is the number of years.
Thus, the required population is i.e.
.
Moreover, after 15 years i.e. x+15 years, the population will be .
Thus, the population after 15 years is .
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Answer:
For this case we must find 35% of 280.
Kerrie gets 10% and then 25%. So:
10% of 280:
280 ------------> 100%
x -----------------> 10%
Where "x" represents the amount given by 10% of 280.
Thus, 10% of 280 is 28.
Now, we find 25% of 280:
280 ------------> 100%
x -----------------> 25%
Where "x" represents the amount given by 25% of 280.
Thus, 25% of 280 is 70.
So we have that 35% of 280 is given by:
So, Kerrie's solution is correct.
Answer:
Option A