Question 921734
if it takes {{{18min}}} to travel {{{3mil}}}, speed is {{{(3/18)(mil/min)=1mil/6min}}}

speed in one min is:{{{1mil/6min=0.1666666666666667(mil/min)=0.17(mil/min)}}}

you can also convert it in mph: 

{{{0.17(mil/min)=0.17(mil/(1/60))h=(0.17/0.017)(mil/h)=10(mil/h)}}}

so, your speed is: {{{0.17(mil/min)}}} or {{{10(mil/h)}}}