Final answer:
Dana must invest $2,218.63 in January to have $2,500 in 11 months, using a 12% annual interest rate compounded monthly.
Step-by-step explanation:
To find out how much Dana must invest in January to have $2,500 in 11 months, we can use the formula for compound interest:
A = P(1 + r/n)^(nt)
Where:
- A is the future value
- P is the principal amount
- r is the annual interest rate (as a decimal)
- n is the number of times that interest is compounded per year
- t is the time in years
In this case, we have:
- A = $2,500 (the future value)
- P is the amount Dana wants to invest
- r = 12% or 0.12 (the annual interest rate)
- n = 12 (monthly compounding)
- t = 11/12 (11 months out of a year)
Using the provided information, we can solve for P:
P = A / ((1 + r/n)^(nt))
By substituting the values, we get:
P = $2,500 / ((1 + 0.12/12)^(12*(11/12)))
This simplifies to:
P = $2,218.63
Therefore, Dana must invest $2,218.63 in January to have $2,500 in 11 months.