Question

Independent Practice

Use the formula to estimate the temperature when n = 80 chirps/min.


The formula F = n/4 + 37 estimates the temperature F in degrees Fahrenheit when crickets chirp n times per minute.


A.
29°F


B.
57°F


C.
117°F


D.
20°F

Answer 1

B. 57°F

Explanation:

Given:

F = n/4 + 37

Where,

F = temperature in degrees Fahrenheit

n = number of times per minute crickets chirps

Find F when n = 80

F = n/4 + 37

F = 80/4 + 37

= 20 + 37

= 57

F = 57 °F

B. 57 °F