Simple Interest and Proportional Relationships

Front

What is Simple Interest?

Back

Simple Interest is the interest calculated on the principal amount borrowed or invested, typically expressed as a percentage of the principal over a specific period of time.

Front

What is the formula for calculating Simple Interest?

Back

The formula for calculating Simple Interest is I = Prt, where I is the interest, P is the principal amount, r is the rate of interest per year, and t is the time in years.

Front

If you borrow $1200 at an 8% simple interest rate for 2 years, how much interest will you pay?

Back

Interest = 1200 * 0.08 * 2 = $192.

Front

What does the 'P' in the simple interest formula I = Prt represent?

Back

The 'P' represents the principal amount, which is the initial amount of money borrowed or invested.

Front

What does the 'r' in the simple interest formula I = Prt represent?

Back

The 'r' represents the rate of interest, expressed as a decimal.

Front

What does the 't' in the simple interest formula I = Prt represent?

Back

The 't' represents the time the money is borrowed or invested, measured in years.

Front

If you borrow $5000 at a 4% simple interest rate for 4 years, what will be the total amount you have to pay back?

Back

Total Amount = Principal + Interest = 5000 + (5000 * 0.04 * 4) = $5800.

Front

What is the total amount to be paid back if the principal is $1000, the interest rate is 5%, and the time is 3 years?

Back

Total Amount = 1000 + (1000 * 0.05 * 3) = $1150.

Front

What is the difference between Simple Interest and Compound Interest?

Back

Simple Interest is calculated only on the principal amount, while Compound Interest is calculated on the principal plus any interest that has already been added.

Front

If the principal is $2000, the interest rate is 3%, and the time is 5 years, what is the interest earned?

Back

Interest = 2000 * 0.03 * 5 = $300.