Korea’s median age in years, 43.7 is 22.3 less than 3 times the number of days Dr. E. Quation has spent in police custody for attempted crimes. How many days has the doctor spent in police custody? *

The doctor spent 22 days in police custody

Step-by-step explanation:

Hi, to answer this question we have to write an equation:

The number of days Dr. E. Quation has spent in police custody will be the variable x. We have to multiply it  by 3 (3times) and subtract 22.3.

That expression must be equal to Korea’s median age in years (43.7)

Mathematically speaking;

43.7 = 3x-22.3

Solving for x:

43.7+22.3 =3x

66 = 3x

66/3 =x

22=x

The doctor spent 22 days in police custody

a. is correct