Final answer:
Larry will be able to save the down payment for the house in approximately 38.2 months.
Step-by-step explanation:
To calculate how long it will take for Larry to save the down payment, we can use the compound interest formula:
A = P(1 + r/n)^(nt)
Where A is the future value, P is the principal (initial amount), r is the annual interest rate as a decimal, n is the number of times interest is compounded per year, and t is the number of years.
Given that Larry currently has $3,000 and plans to save $500 per month, we can calculate the future value of his savings at the end of each month using compound interest.
Plugging in the values:
A = 3000(1 + 0.04/12)^(12t)
150000 = 3000(1 + 0.04/12)^(12t)
(1 + 0.04/12)^(12t) = 50
Using logarithms, we can solve for t:
12t = log(50)/log(1 + 0.04/12)
t ≈ 38.2 months
Therefore, Larry will be able to save the down payment for the house in approximately 38.2 months.