Answer: To calculate the monthly mortgage payment amount using the formula M=Pr(1+r)n(1+r)n−1, we first need to determine the variables:
P = purchase price - down payment = $150,000 - $30,000 = $120,000
r = annual interest rate / 12 (to get the monthly rate) = 4.2% / 12 = 0.0035
n = number of payments = 30 years x 12 months per year = 360
Now we can plug these values into the formula to calculate the monthly mortgage payment:
M = $120,000 * 0.0035 * (1+0.0035)^360 / ((1+0.0035)^360 - 1)
M = $567.79
So the monthly mortgage payment amount is $567.79.
To calculate the total costs of owning vs renting over different intervals, we need to consider additional costs such as property taxes, home insurance, maintenance, and any rental increases over time.
Assuming a property tax rate of 1.5% and home insurance cost of $1,000 per year, the total costs for owning the home after 1 year would be:
Total cost of owning = down payment + (12 x mortgage payment) + property taxes + home insurance
Total cost of owning = $30,000 + (12 x $567.79) + ($150,000 x 0.015) + $1,000
Total cost of owning = $46,873.48
The total cost of renting for 1 year would be:
Total cost of renting = 12 x monthly rent
Total cost of renting = 12 x $900
Total cost of renting = $10,800
Therefore, the total cost of owning the home is higher than renting in the first year.
For the next intervals, we need to consider the rental increase every 4 years. Assuming the rental increase of $75 every 4 years, the total cost of renting after 5 years would be:
Total cost of renting = (12 x $900) + (1 x $975) + (1 x $1,050)
Total cost of renting = $11,925
Assuming an annual home maintenance cost of 1% of the home value, the total cost of owning the home after 5 years would be:
Total cost of owning = down payment + (60 x mortgage payment) + (5 x property taxes) + (5 x home insurance) + (5 x 0.01 x $150,000)
Total cost of owning = $30,000 + (60 x $567.79) + ($150,000 x 0.015 x 5) + ($1,000 x 5) + ($1,500 x 5)
Total cost of owning = $128,667.40
Therefore, the total cost of renting is lower than owning after 5 years.
We can repeat this process for 10 and 15 years to determine which option is better over each interval. However, it is important to note that the advantages and disadvantages of renting vs owning go beyond just the financial costs, and personal circumstances and priorities should also be considered.
Explanation: