Question

The formula f= n/4 + 37 estimates the temperature F in degrees Fahrenheit when crickets chirp n times per minute. Use the formula to estimate the temperature when n = 18 chirps/min. Round to the nearest whole number if necessary.

A. 42°F
B. 41°F
C. 37°F
D. 46°F

Answer 1

By inserting the value of 18 chirps/min into the formula f = n/4 + 37, the calculated temperature is 41.5°F, which is rounded to 42°F, matching option A.

Step-by-step explanation:

To estimate the temperature using the formula f = n/4 + 37 when crickets chirp n times per minute, you need to substitute the given value of n into the formula and solve for f. With n = 18 chirps/min, the calculation is as follows:

f = 18/4 + 37

First, divide 18 by 4:

18/4 = 4.5

Then, add 37 to the result:

4.5 + 37 = 41.5

Rounded to the nearest whole number, 41.5 becomes 42°F. Therefore, the estimated temperature is 42°F, which corresponds to option A.