Compound Interest Formulas

Kennedy won $3,000 from a radio contest. If she puts this money in a bank account that earns 2.9% interest compounded quarterly, how much total will she earn in 10 years?

• $4915.59

• $3933.28

• $2979.81

• $4005.09

what TYPE of functions are the compound interest functions?

• linear

• quadratic

• log

• exponential

how often is the money compounded if you use the formula A=Pe^rt?

• every month

• every day

• every year

• continuously

if you are solving for t in the continuous compounding equation, what is the base of your log?

• 10

• 2

• e

• it has no base

The Arnold's took out a loan for a home. The amount was $195,000 at a 4% interest rate compounded annually, how much will they have paid after 30 years?

• $412,489.75

• $529,586.31

• $632,462.51

• $640,891.12

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

• $1,584.62

• $2,651.39

• $2,706.86

• $1,825.10

Emily 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

Principal: $5000
Interest Rate: 3.75%
Time: 25 years
Compounded Monthly
State the future account balance.

• $12712.31

• $12,749.30

• $12,657.59

• $12550.84

Given an investment of $1,500:
Which investment would have a larger balance after 5 years?
4% compounded monthly
3.9% compounded daily.

• 4% compounded monthly

• 3.9% compounded daily

Cora invested $400 at a rate of 35% for 8 months, compounded continuously. How much is her investment worth after 8 months?

• $520.07

• $505.12

• $460.11

• $7,643.74