Answer:
negative 5/4
Step-by-step explanation:
Answer:
$14.39
Step-by-step explanation:
The formula for continuous compounding of interest is:
A = Pe^(rt), were P is the initial dollar amount, A is the final amount, r is the interest rate as a decimal fraction, and t is the time in years.
Here we have $2109 = $500e^(10r) and need to solve for r.
To do this, take the natural log of both sides, obtaining:
ln 2109 = ln 500+ 10r.
Then 10r = ln 2109 - ln 500, and
ln 2109 - ln 500
r = --------------------------------------------
10
= .1439
The interest rate was 14.39%.
If you would like to calculate 4 * 1 1/5, you can do this using the following steps:
1 1/5 = 6/5
4 * 1 1/5 = 4 * 6/5 = 24/5 = 4 4/5
The correct result would be 4 4/5.
If that was not your question, please ask differently and I will try and answer your question. :)
