The temperature in degrees Fahrenheit can be estimated from the number of cricket chirps per minute. If a cricket chirps 40 times per minute, the temperature is approximately 50 degrees Fahrenheit.
The average rate of change in temperature is 0.25 degree per chirp per minute. Use these facts to estimate
The temperature when a cricket chirps 56 times per minute.
A) 54 degrees
B) 62 degrees
C) 40.25 degrees
D) none of the above

Question

Quizplus · Accepted Answer

The temperature increases by 0.25 degrees for each additional chirp per minute. From 40 to 56 chirps is an increase of 16 chirps. Thus, the temperature increase is 16 chirps * 0.25 degrees/chirp = 4 degrees. Adding this to the initial 50 degrees gives 54 degrees.

The Temperature in Degrees Fahrenheit Can Be Estimated from the Number