A new green technology can be installed in your home for a one-time installation cost of $10,000 and annual maintenance costs of $$650 per year. If the green technology is supposed to save you $1200 each year in energy bills, how many whole years will it take to recuperate your costs?
Savings 1200 less maintenance of 650 = 550 savings each year
550 x = 10000 solve for x = years to break even
The answer I believe is 19 because if you have 18 years, you would be a little UNDER the amount of money to recuperate the cost. You need to be a whole number of years over.