Question 706941
Jimmy and Gary ran from the disaster at 5mph.
 Then they reconsidered and walked back at 3mph.
 If they were gone 8 hours, how far did they run from the disaster.
;
Let d = one way distance from the disaster, (also the distance back to it)
:
Write a time equation; time = dist/speed
:
Away time + return time = 8 hrs
{{{d/5}}} + {{{d/3}}} = 8
Do you think you can do this now? (multiply thru by 15 to clear the denominators)