Question 855804
Convert minutes to hours:
{{{ 10/60 = 1/6 }}} hrs
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Think of one of the runners as standing still and
the other one running at the sum of their speeds
{{{ d = ( 10 + 8 )*(1/6) }}}
{{{ d = 18/6 }}}
{{{ d = 3 }}}
After 10 min, they are 3 mi apart