Question

The temperature dropped 2 degrees each hour for 6 hours. Which integer shows the change in temperature over the 6 hours?

Answer 1

`color(green)(""(-12))`

Explanation:

A drop of `2^@` (per hour) means that the temperature changes by `(-2^@)` (per hour).

`(-2^@)/(cancel("hour"))xx(6cancel(" hours")) = -12^@`