Which of the following is the solution to the equation 25^(z − 4) = 125? (6 points)
2 answers:
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Answer:
<em>Correct choice: b. $1221.00</em>
Step-by-step explanation:
<u>Compound Interest</u>
It occurs when the interest is reinvested on each compounding period. When it happens interest in the next period is then earned on the principal sum plus previously accumulated interest.
The formula is:
Where:
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
The initial deposit on a savings account is P = $1000. The account provides an annual rate of r = 4% = 0.04 compounded monthly. The value of n is 12 since there are 12 months in a year. The money is left in the account for t=5 years. Substituting the values:
A = $1221
Correct choice: b. $1221.00
