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Details

Algebra for Business
Test 3
14
Mathematics
Undergraduate 1
04/08/2008

Additional Mathematics Flashcards

 


 

Cards

Term

Formula to find simple interest for a loan

EX

Eleanor Chin borrowed $6000 at 9.2% interest for 11 months 

Definition
I=PRT
Term

What formula do you use to find the Future or Maturity value for Simple Interest?

 

When given present value, rate of interest, time period and solving for future value 

Definition
A= P(1+rt)
Term
What does P and A represent in Simple Interest?
Definition
P represents the amount at the beginning of the period, A represents the Value at the end of the period
Term

What is the formula to find present value of $32,000 in 4 months at 9%

 

Definition
P= A/1+rt
Term
When findin the actual rate of interest paid what formula do you use and how do you solve it
Definition

Use I=Prt and let r be the rate of interest

Solve it by

r=I/Pt 

Term
What equation do you use to find out how much money is an account after nine years if $7000 is deposited in an account that pays 4% interest compounded annually
Definition

A=P(1+i)^n

n = represents the amount of periods

Term
What formula do you use to find
If a $16,000 investment grows to $50,000 in 18 yrs.  What is the interest rate assuming annual compounding.
Definition

P(1 + i)^n=A

 

16000(1+i)^18=50000 

solve for i 

Term
What is the formula to find a future amount of money invested at an annual rate of 4% compounded CONTINUOUSLY for 5 yrs
Definition

 A= Pe^rt

A=5000e^((.04)5)

Term

What is the formula to find an effective rate of a given interest

Ex

4% compounded semiannually 

Definition
Rsube=(1+r/m)^m-1
Term

What is the equation to find the future value of an ordinary annuity

Example 

Chris Webber is an athlete who feels that his playing career will last 7 years. To prepare for his future, he deposits $122,000 at the end of each year for 7 years in an account paying 6% compounded annually. How much will he have on deposit after 7 years? 

Definition

S=R[((1+i)^n-1) / i]

 

 

Term
What is the equation to amortization payments
Definition
Pi / 1- (1+i)^-n
Term
How do you find the ammortize payments remaining balance
Definition
R [ ((1-(1+i)^-(n-x) / i ]
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