Question 235728
As long as the units are all compatible, you
can use {{{d = r*t}}}
In this case, you have (miles) = (miles/hr)x(hrs)
Note that hrs cancel on the right side, and you have
(miles = miles)
which is OK
{{{40 = 60*t}}}
divide both sides by {{{60}}}
{{{t = 40/60}}} hrs
{{{t = 2/3}}} hrs
To convert to minutes,
{{{2/3}}} hrs *{{{60}}} min/hr = {{{(2/3)*60 = 40}}} min