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All simple intrest problems use the simple intrest equation,

I=PRT or PRT=I

Where

P = principal, the amount deposited or borrowed, in dollars.

R = annual interest rate, in percent, expressrd as a decimal or fraction.

T = time the account is open, in years

I = interest earned, in dollars, during the T years.

2006-11-13 15:15:11 · answer #1 · answered by Anonymous · 0 0

i just learned this !

it means intrest equals principles time rate times time (.5 for 6motnhs and 1 for a year and so on)

so i f the questino is sally wants to make 36 dollars on 16% intrest in 6 months how much will she have to pay to get this amount?

sooo

.16=36r(.5)

follow your eqautino out from there

2006-11-13 15:02:09 · answer #2 · answered by maizy 2 · 0 0

I=intrest P=principle R=rate T=time

It all has to do with money. Loaning and saving etc.

2006-11-13 15:23:44 · answer #3 · answered by Kat 2 · 0 0

The principle is the starting amount of money. For example, the money that is saved or loaned.

2006-11-13 14:58:06 · answer #4 · answered by abcde12345 4 · 1 0

the amount of interest is equal to the priciple x rate x time
this is known as simple interest. It applies when there is no compounding.

100 for 5 years at 10 % is
int = $100*0.10*5 =$50 ,

2006-11-13 15:01:27 · answer #5 · answered by modulo_function 7 · 1 0

Since most of your responders are misspelling it, I feel compelled to point out that the word is spelled: "principal"

It refers to the "principal amount" (the important amount).
The other spelling of this word ("principle") means a rule or a standard. It does not describe the amount of money that is earning interest.

2006-11-13 15:40:13 · answer #6 · answered by actuator 5 · 0 1

i=intrest p=principle r=rate t=time

2006-11-13 15:20:27 · answer #7 · answered by jdawgs 3 · 0 0

this formula is for finding the interest. (I=interest) r is the rate of interest, and t is the time. this formula is common in finding your interest with money in a bank. P is the amount of money

2006-11-13 15:02:08 · answer #8 · answered by Anonymous · 0 0

p is the principal money, the amount being loaned ^_^

2006-11-13 15:02:21 · answer #9 · answered by ettezzil 5 · 0 0

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