Respuesta :
Answer:
9.75 minutes
Step-by-step explanation:
First, we change into minutes: 3 minutes and 15 seconds = 3 + 15/60= 3+ 1/4 = 13/4 minutes.
Then, 1/3 mile in 13/4 min, that means 1 mile ( 1 mile = 1/3 mile * 3) takes 13/4 *3 = 39/4 minutes.
The answer is 39/4 = 9.75 minutes.
Hope that useful for you.