Question 337961
{{{speed=distance/time}}}
3 hours and 20 minutes = 3 and 1/3 hours.  3 and 1/3 needs to be converted to an improper fraction. 3 and 1/3 = 10/3.
{{{speed=200miles/(10/3)hours}}} Dividing by a fraction requires you to multiply by its reciprocal.
{{{speed=200*(3/10)}}}
speed=60 miles per hour