Interest Activity

What is the formula for simple interest?

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

Question #5

In the formula I=P·R·T, what does r stand for in a loan?

A. Rate: the interest percentage you will pay on a loan

B. Ratio: the size of the interest interval compared to time

C. Return: how much money you end up earning

D. Reserves: how much money you have in the investment

• A

• B

• C

• D

Write the decimal as a percent. 
0.37

• 37%
• 3.7%
• .37%

Write the percent as a decimal. 
4.3%

• 4.3
• .43
• .043
• 4300

Dan borrowed $2,000 for 6 months at 12% annual simple interest rate. How much interest is that?

• $120
• $144
• $1,200
• $1,440

Find the simple interest earned for principal of $2,000 at and 8% rate for 5 years.

• $160

• $800

• $80,000

• $16

If you are calculating the simple interest and you are given the time in months.  How can you find the time in years?

• divide 12 by the months
• divide the months by 12
• multiply 12 times the months
• change the months to a decimal

Semi-Annually means how many times a year?

• 4 
• 2
• 1
• 6

Riley invested $1,000 in savings bonds. If the bonds earn 6.75% interest compounded semi-annually, how much total will Riley earn in 15 years?

• $1,584.62
• $2,651.39
• $2,706.86
• $1,825.10

Olivia would like to buy some new furniture for her home. She decides to buy the furniture on credit with 9.5% interest compounded quarterly. If she spent $7,400, how much total will she have paid after 8 years.

• $15,415.94
• $15,683.28
• $15,927.56
• $16,109.05