Question

Suppose that during one period of extreme cold, the average daily temperature decreased 1 and 1/2 F each day. How many days did it take for the temperature to decrease by 9 F ( Example 1 and 2 )

Answer 1

I believe it would take 6 days.

Explanation:

If it decreased 1 1/2 F per day, that is 3 F in 2 days. So, 6 F in 4 days. And 9 F in 6 days.