Answer:
Step-by-step explanation:
we know that
The formula to calculate continuously compounded interest is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
e is the mathematical constant number
we have
substitute in the formula above
solve for P
Answer:
( 3x + 5y) • (3x - 5y)
Step-by-step explanation:
hope this helps:))
There are 15 years was his money invested.
<h3>
What is simple interset?</h3>
Simple Interest is an easy method of calculating the interest for a loan/principal amount.
Given
Frank invests $1,000 in simple interest investment account that pays 8% a year.
After a number of years, he withdraws his balance of $2,200.
The number of years was his money inversted is;

Where p is the principal amount, r is the rate of interest, I is the amount and t is the time.
Substitute all the values in the formula;

Hence, in the 15 years was his money invested.
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