Population Growth and Decline Quiz

What will be the population at the end of the tenth year if it decreases by 4% every year starting from 50,000?

The value of a car purchased for $40,000 and losing 15% in value every year will be $15,000 at the end of the fifth year.

How many years will it take for a population of 50,000 to double if it increases by 4% every year?

If I invest $1000 now at an interest rate of 4% per year, it will be worth approximately ______ by the end of the 40th year.

Match the following financial terms with their descriptions:

What is the total of $15.92, $27.50, and $56.20?

A car is typically considered a long-term saving and borrowing item.

If $457 is multiplied by 6, what is the result?

The conversion of a fraction to a percentage involves multiplying by ______.

Which expense is typically NOT included in the ongoing costs of owning a car?

What is $87,560 divided by 52 to the nearest cent?

Match the following financial terms with their definitions:

To prepare for an examination, _______ is essential for practicing important skills.

What is 10% of $120?

25% of a number is equal to 40 means the number is $160.

Calculate 15% of $180.

_____ of 250 equals $43.75.

Match the percentage with its equivalent decimal:

What is the result of increasing $40 by 25%?

12.5% of $180 is equal to $22.50.

20% of _____ = 10 mL.

A town's population is expected to decrease by 4% annually, starting with an initial population of 50,000.
To calculate the decreasing population over time, you can use a calculator by entering 50,000, pressing the equals key, then multiplying by 0.96 and pressing equals repeatedly. Each equals press represents one year of population decrease.
If the population increases by 4% every year, after ten years, the population will be approximately 71,067.
If the population decreases by 4% every year, after ten years, the population will be approximately 33,706.
To double the population with a 4% annual increase, it will take approximately 17 years.
To halve the population with a 4% annual decrease, it will take approximately 17 years.

A car purchased for 40,000willbeworthapproximately40,000 will be worth approximately 40,000willbeworthapproximately18,154 after five years, depreciating by 15% annually.

Investing 1000witha41000 with a 4% annual increase will result in a value close to 1000witha44,801 after 40 years.

Understanding percentage changes is crucial in financial mathematics.
Percentage increases and decreases are used to solve various problems involving population growth, investment returns, and car depreciation.
Using a calculator effectively can simplify calculations and help visualize these changes over time.