Question

The temperature dropped 11° in the last hour. The temperature is currently below 50°F. Which of the following could be used todetermine the temperature to one hour ago?A. t-11= 50 B. t-11< 50C. t-11 > 50D. t- 11 is less than or equal to 50

Answer 1

Let the temperature before the last hour be t.

Then it followed that the time at the last hour if t dorps by 11° would be (t-11)°

Currently, the temperature is below 50°F.

The temperature to one hour ago is t-11 <50