Oscar measures the temperature of a solution at the beginning of an experiment to be 34°F. He monitors the
temperature of the solution every minute for 10 minutes. He records the change in temperature from his
previous reading. His data show a decrease of 3°F four times, a decrease of 5°F three times, no
temperature change two times, and an increase of 8°F once.
(a) Write an expression to represent the average change in temperature each minute.
(b) Using your expression from Part (a), determine the average change in temperature for the first trial.
Show all work.
(c) Oscar repeats the experiment and finds the average change in temperature each minute is 2°F
greater in the second trial than in the first trial. What is the average change in temperature each
minute in the second trial of the experiment? Show all work.

Q&A Education