Question 578788
they give you the total time and the rates


as you say, d = rt ___ but also, t = d / r


(d / 10) + (d / 6) = 1.6
___ the rates are in mi per HOUR, so the time needs to be hours; not hours and minutes
___ 36 min = (36 / 60) hr = (6 / 10) hr = .6 hr


multiplying by 30 (LCD) ___ 3d + 5d = 48 ___ 8d = 48