Question 126421
{{{d}}} = distance the faster one travells
{{{t}}} = time to get 69 miles apart
(1){{{d = 47t}}}
{{{d - 69 = 32t}}}
(2){{{d = 32t + 69}}}
Set {{{d}}} in (1) = {{{d}}} in (2)
{{{47t = 32t + 69}}}
{{{15t = 69}}}
{{{t = 4.6}}} hrs
{{{.6*60 = 36}}}
In 4 hours and 36 minutes they will be 69 mi apart