# Demographics

The population grew in the city in 10 years from 42000 to 54500. What is the average annual percentage increase of population?

Result

p =  2.6 %

#### Solution:

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

## Next similar examples:

1. The city 3
The city has 22,000 residents. How long it is expected to have 25,000 residents if the average annual population growth is 1.4%?
2. Population
The town has 65,000 inhabitants. 40 years ago there were 157,000. How many people will live in town in 10 years if the average rate in population is as in previous years?
3. The crime
The crime rate of a certain city is increasing by exactly 7% each year. If there were 600 crimes in the year 1990 and the crime rate remains constant each year, determine the approximate number of crimes in the year 2025.
A radioactive material loses 10% of its mass each year. What proportion will be left there after n=6 years?
5. Investment
1000\$ is invested at 10% compound interest. What factor is the capital multiplied by each year? How much will be there after n=12 years?
6. Annual pension
Calculate the amount of money generating an annual pension of EUR 1000, payable at the end of the year and for a period of 10 years, shall be inserted into the bank to account with an annual interest rate of 2%
7. Car value
The car loses value 15% every year. Determine a time (in years) when the price will be halved.
8. Computer revolution
When we started playing with computers, the first processor, which I remember was the Intel 8080 from 1974, with the performance of 0.5 MIPS. Calculate how much percent a year rose CPU performance when Intel 486DX from 1992 has 54 MIPS. What
9. Geometric progression
In geometric progression, a1 = 7, q = 5. Find the condition for n to sum first n members is: sn≤217.
10. Sequence
Calculate what member of the sequence specified by ? has value 86.
11. Log
if ?, what is b?
12. A perineum
A perineum string is 10% shorter than its original string. The first string is 24, what is the 9th string or term?
13. Exponential equation
In the set R solve the equation: ?
14. Logarithm
Determine the number whose decimal logarithm is -3.8.
15. Account operations
My savings of php 90,000 in a bank earns 6% interest in a year. If i will deposit additional php 10,000 at the end of 6 months, how much money will be left if i withdraw php 25,000 after a year?
16. Coordinate
Determine missing coordinate of the point M [x, 120] of the graph of the function f bv rule: y = 5x
17. Geometric progression 2
There is geometric sequence with a1=5.7 and quotient q=-2.5. Calculate a17.