Traveling at 65 miles per hour, how many minutes, rounded to the nearest whole number, does it take to drive 125 miles from san diego to malibu

65 miles per hour mean 65 miles per 60 minutes 

65 miles per 60 minutes 
5 miles per x minute 


 x = 5*60/65 = 300/65 = 4,6 min.

5 miles per 4,6 min.
125 miles per x min.


  x = 125*4,6/5 = 25*4,6 = 115 min. = 1 h. 55 min. 

hope this will help you