00:01
For this problem, we're asked to use the compound interest formula, a equals p times 1 plus r over n to the power of nt, and a equals p -e to the power of rt to solve the given problem.
00:13
So before jumping right into the question, i'll note that essentially this problem is just a matter of understanding how to use those given equations.
00:22
So we have a equals p times 1 plus r over n to the power of n times t.
00:27
So a is, we can think of it as the amount at time t.
00:35
So it's the amount at t.
00:36
P is the principal or the initial investment.
00:42
R is the interest rate.
00:50
N is number of compounds or number of compound periods per time unit, i .e.
01:09
Per year, etc.
01:10
Etc.
01:12
And then t is number of time units.
01:24
So for part a, we're asked, what is the accumulated value if the money is compounded semi -annually? all we need to do is plug in the numbers.
01:33
So we have 25 ,000 is the principal...