Question 221215
D=rt, so dividing by t you get {{{r=D/t}}}


{{{r=36/(2/3)}}}
{{{r=36*(3/2)}}}


Divide out the 2 factor:
{{{r=18*3=54}}} km/hr



At this rate, if D=162 km, 
then {{{t=D/r}}}
{{{t=162/54=3}}} hrs


If t=8 hrs, D=rt
D=54*8= 432 km


R^2