Last year, the temperature in Rochester, NY, dropped from -3 F to -21 F in only 6 hours. if temperature changed by a steady amount during these hours, by how much did it change each hour?

Step-by-step explanation:

The temperature change that occurred was -21 - - 3 = - 18 degrees

This occurred in 6 hours.

-18/6  = - 3

So each hour during the six hours the temperature went down 3 degrees.

- 3

- 6      the first hour

-9       the second hour

-12      the third hour

-15       the fourth hour

-18        the fifth hour

-21        the sixth hour

a

step-by-step explanation:

a