Question

A hot cup of coffee is put outside on a cool day. The temperature of the coffee, C in degrees Celsius, is a function of time, t in minutes. Consider the statement C(20)=30.

What are the units for 20? 30?

Answer 1

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Answer:

• units for 20: minutes
• units for 30: degrees Celsius

Explanation:

The problem statement tells you the function value is in degrees Celsius, and the function argument is in minutes.

units for 20: minutes

units for 30: degrees Celsius