Newton's law of cooling states that under forced convection (which is assumed to be true), then dT(t)/dt = -k(T(t)-Ta)..............(1) T(t)=temperature Ta=ambient temperature=40F k=cooling constant = 0.1947 T(0)=98.6F (assuming victim did not have fever) Integrate (1) T(t)-Ta=(T(t)-T(0))e^(-kt) Solve for t (T(t)-Ta)/(T(t)-T(0)) = e^(-kt) take log: -kt=log_e((T(t)-Ta)/(T(t)-T(0))) substitute T(t)=80F, Ta=40F,T(0)=98.6F -kt=log_e((80-40)/(98.6-40))=-0.38186 t=0.38186/0.1947 =1.96, or almost 2 hours (assuming k=0.1947 is in hours)
Divide 24 by 4 because the denominator is 4.. 24÷4=6 Multiply 6 by 3 because the numerator is 3. 6×3=18 <span>18/24 students speak both Spanish and English</span>
