Question 894985
In the first three hours, Michael travels a distance of
{{{62.5miles/"1 hour")*(3hours)=187.5miles}}} .
In the hour after his 15-minute break Michael travels a distance of
{{{5miles/"1 hour")*(1hours)=50miles}}} .


3 hours + 13 minutes + 1 hour = 4 hours and 15 minutes = 4.25 hours.
So, after 4.25 hours, Michael has traveled
187.5 miles + 50 miles = 237.5 miles.
He still needs to go
500 miles - 237.5 miles = 262.5 miles
further to reach his destination.
At his stop speed of 62.5 mph, it will take him
{{{262.5miles/((62.5miles/"1 hour"))=4.2hours}}}
The whole trip will take
4.25 hours + 4.2  hours = 8.45 hours.
Since {{{0.45hour*(60minutes/"1 hour")=27minutes}}} ,
it will take Michael 8 hours and 27 minutes to reach his final destination.