Exploring the Simple Interest Formula: I=Prt

This video tutorial on 'The Magic of Math' channel covers the concept of simple interest. It explains the simple interest formula, including its components: principal, rate, and time. The video provides examples to calculate interest earned, account balance, interest rate, and time required to earn a specific interest. The tutorial aims to help viewers understand and apply the simple interest formula to solve for any missing component. The video concludes with a call to subscribe for more educational content.

What does interest represent in a financial context?

• A fixed amount paid on investments annually

• The total amount of money in a savings account

• The fee for borrowing toys

• The amount of money earned or paid over time on a principal

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CCSS.7.RP.A.3

What is the principal amount?

• The total interest earned

• The initial amount of money borrowed or saved

• The final amount after interest is applied

• The interest rate charged by the bank

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CCSS.7.RP.A.3

How is the interest rate applied in the simple interest formula?

• As a whole number

• Converted into a decimal

• As a fraction

• As a percentage

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CCSS.7.RP.A.3

How is time represented in the simple interest formula?

• In months

• In years

• As a decimal

• In days

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CCSS.8.EE.C.7B

What does a simple interest rate of 5% convert to as a decimal?

• 50

• 0.05

• 5

• 0.5

How do you calculate the total balance in an account after earning interest?

• Multiply the principal by the interest rate

• Add the interest earned to the principal amount

• Subtract the interest earned from the principal amount

• Divide the principal by the interest rate

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CCSS.HSF.BF.A.2

If you deposit $600 in a savings account with a 4% interest rate, how much interest will you earn after 5 years?

• $200

• $120

• $100

• $150

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CCSS.7.RP.A.3

What is the balance of an account after earning $240 in interest on a principal of $1200 over 4 years?

• $1200

• $960

• $1440

• $1240

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CCSS.7.RP.A.3

What is required to solve for the interest rate in a simple interest calculation?

• The principal, interest earned, and time

• The time and the total balance

• The principal and the total balance

• The interest earned and the total balance

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CCSS.6.EE.B.6

To find out how long it takes to earn a certain amount of interest, which component of the simple interest formula is solved for?

• Interest

• Time

• Rate

• Principal

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CCSS.6.EE.B.7