Question 198873
{{{d=rt}}} Start with the distance-rate-time equation



{{{40=45t}}} Plug in {{{d=40}}} and {{{r=45}}}



{{{40/45=t}}} Divide both sides by 45.



{{{8/9=t}}} Reduce



So the solution is {{{t=8/9}}} which approximates to {{{t=0.889}}}. This means that it will take about 0.889 hours (which is about 53.34 minutes) to travel 40 miles.