To solve, put each answer in terms of ft/min. Do this by converting all distances to feet and times to minutes, the dividing feet by minutes. A) [tex]18/20=9/10[/tex] ft/min. B) To get 2.5 hrs to mins, multiply by 60. [tex]2.5*60=150[/tex] [tex]90/150=3/5[/tex] ft/min. C) To get feet from yards, multiply yards by 3. [tex]20*3=60[/tex] [tex]1.5*60=90[/tex] [tex]60/90=2/3[/tex] ft/min. D) [tex](11/3)*3=11[/tex] [tex]11/15=11/15[/tex] ft/min. Now compare the fractions to determine the largest and fastest is 9/10 ft/min, or A.
