Question

The temperature at 6 pm was 0°F. At 10 pm the

temperature was 211.2°F. Write an expression that you
can use to find the average change in temperature per
hour during that time. Then evaluate the expression.

Answer 1

Average change in temperature is - 2.8 Fahrenheit per hour.

Explanation:

Average change in temperature is the change in temperature divided by the time taken for the change.

Change in temperature = (-11.2) F- 0 F

= -11.2 F

Time taken for the change in temperature = 10 pm

= 4 hours

Average change in temperature = Change in temperature / time taken for the change

= - 2.8 Fahrenheit per hour