Question 884636
Rate*Time=Distance
We'll say biker 1 started at point {{{x=0}}} and went west (negative)
{{{D[1]=-10*(3/2)=-15}}}{{{km}}}
Biker 2 started at point {{{x=5}}} and went east (positive)
{{{D[2]=5+12*(3/2)=5+18=23}}}{{{km}}}
The distance between them is the difference.
{{{D=23-(-15)}}}
{{{D=38}}}{{{km}}}