Question 793442
 the travel time between two cities is inversely proportional to the average speed.
 A train travels between the cities in 3 hours at an average speed of 65 mph
 how long would it take to travel between the cities at an average speed of 80 mph?
:
let t = time at 80 mph
An inverse proportion equation
{{{t/3}}} = {{{65/80}}}
80t = 65 * 3
t = 195/80
t = 2.4375 hrs