Question

you track the temperature from the time you eat lunch to the time you go to bed . You find that it drops 2 degrees each hour for 10 hours . which expression best shows the change in temperature. a. -2x10 b. -2x-10 c. 2+10 or d . 2x10

Answer 1

The answer is A. -2x10.

Answer 2

The temperature drops 2 degrees in x hours, we could write it as
(-2)x

Because it drops for 10 hours, change the x into 10
(-2)(10)
= -2 × 10

The answer is option a