Question 612616
    Two cars leave the origin; one goes north at 35 mph and the other goes south at 50 mph. After how many hours will they be 500 miles apart? 
.
Let t = time (hours) traveled
then
distance traveled north is 35t
distance traveled south is 50t
.
35t + 50t = 500
85t = 500
t = 500/85
t = 5.88 hours
or 
t = 5 hours and 53 minutes