Question

find the principal amount :
interest rate = 4%
interest earned = $ 90
time = 10 years

Answer 1

If an amount of money,  

P

, the principal, is invested for a period of  

t

years at an annual interest rate  

r

, the amount of interest,  

I

, earned is

I

=

P

r

t

where

I

=

interest

P

=

principal

r

=

rate

t

=

time

Interest earned according to this formula is called simple interest.

Answer 2

Here, I pasted the answer ⬆️

I hope this helps you

plzz mark me as Brainliest and follow me