From October to January, the daily high temperature in Anchorage, Alaska drops an average of 1/3 degree per day. On October 1st, the temperature was 42º F. Write and solve an equation to predict how long it will take the temperature to reach 22º F. Show all work on your work page.

Aproximately two months

Explanation:

It takes 60 days to drop 20 degrees F. (42 - 22), taking in account that, when the temperature drops one third of a degree every day, it takes 3 days to drop on degree. 3 times 20 = 60. On the first of december it should have reached 22 degrees F.