Simple and Compound Interest

The simple interest formula is I=Prt.  What does the t represent?

• Principle
• Interest
• Time
• Percent Rate

Tags

CCSS.7.RP.A.3

The simple interest formula is I=Prt. The P represents the principal amount. The principal is ___________________.

• the amount of money borrowed or deposited

• the percent interest for his year

• the amount taxed

• the amount the bank owes you for being a customer at their bank

I = Prt where r represents the rate.  Rates must be converted into ____ before multiplying.

• fractions
• mixed numbers
• decimals

Tags

CCSS.7.RP.A.3

To earn as much interest as possible, you should open a savings account that earns ______ interest and has the _____ interest rate.

• compound; lowest
• simple ; lowest
• compound ; highest
• simple ; highest

Tags

CCSS.7.RP.A.3

What is the formula for simple interest?

• A=P(1+r)^t
• I=Prt
• I=P(1+r)t
• A=Prt

Tags

CCSS.8.EE.C.7B

John just opened a savings account and wants to maximize the amount of interest he earns. Which of the following actions enable him to earn MORE interest?

• selecting an account with a higher interest rate
• leaving his money in the account for a long period of time
• transferring money into his checking account each month
• higher interest rate AND leaving money in for a longer time

Tags

CCSS.7.RP.A.3

In some investment accounts interest is computed on interest that has been earned in previous years. What is this method of computing interest called?

• compound interest

• double interest

• simple interest

• not enough information

Tags

CCSS.7.RP.A.3

Beyonce went to the mall and saw a massage chair that she would have to take a loan out for $6500 to purchase.  The bank said that she could get a simple interest rate of 8% for 5 years.  What is the total amount that Beyonce will pay for the chair?

• $2600
• $910
• $9100
• $260

Tags

CCSS.HSF.BF.A.2

Steve deposited

$5,000 in a savings account that pays 4% interest compounded annually. Which

equation could be used to find the value of the account after 3 years?

• A = 5,000(1 + 4)³

• A = 5,000(1 + 0.04)³

• A = 5,000(1 + 0.4) x 3

• A = 5,000(0.04)³

Tags

CCSS.7.RP.A.3

CCSS.7.EE.B.3

CCSS.7.EE.B.4

Heather

invested $8,000 in a 4-year Certificate of Deposit (CD) that pays 4.1% interest

compounded annually. What is the value of the CD at the end

of the 4 years?

• $9,394.92

• $9,312.00

• $1394.00

• $1312.00

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1