Simple Interest

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What is simple interest?

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Simple interest is a method of calculating the interest charge on a loan or financial product based on the original principal amount and a fixed interest rate over a specified period of time.

Tags

CCSS.7.RP.A.3

Front

How is simple interest calculated?

Back

Simple interest is calculated using the formula: I = P * r * t, where I is the interest, P is the principal amount, r is the annual interest rate (in decimal), and t is the time in years.

Tags

CCSS.7.RP.A.3

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What is the formula for calculating the total amount paid on a loan with simple interest?

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The total amount paid (A) can be calculated using the formula: A = P + I, where I is the simple interest calculated using I = P * r * t.

Tags

CCSS.7.RP.A.3

Front

If a loan of $10,000 is taken at a simple interest rate of 5% for 3 years, what is the interest earned?

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The interest earned is $1,500, calculated as I = 10000 * 0.05 * 3.

Tags

CCSS.7.RP.A.3

Front

What is the principal amount in a simple interest calculation?

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The principal amount is the initial sum of money borrowed or invested, before any interest is added.

Tags

CCSS.7.RP.A.3

Front

How does the time period affect simple interest calculations?

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The longer the time period, the more interest will accumulate, as interest is calculated based on the principal amount over time.

Tags

CCSS.7.RP.A.3

Front

What is the difference between simple interest and compound interest?

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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.

Tags

CCSS.7.RP.A.3

Front

If a person pays $2,000 in interest on a loan of $20,000 over 4 years, what is the simple interest rate?

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The simple interest rate is 2.5%, calculated using the formula r = I / (P * t) = 2000 / (20000 * 4).

Tags

CCSS.7.RP.A.3

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What is the impact of a higher interest rate on the total amount paid on a loan?

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A higher interest rate increases the total amount of interest paid over the life of the loan, resulting in a higher total amount paid.

Tags

CCSS.7.RP.A.3

Front

How can you determine the total interest earned from a savings account with simple interest?

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You can determine the total interest earned by using the formula I = P * r * t, where P is the initial deposit, r is the interest rate, and t is the time in years.