Question 23013
D=RT
T=D/R


T(x) = D/R + D/R
T(x) = 200/x + 240/(x-20)


When x= 100,
T(100) = 200/100 + 240/(100-20)
T(100) = 200/100 + 240/80
T(100) = 2 + 3 = 5 hours


R^2 at SCC