Respuesta :

Answer:

1/3 of a minute or 20 seconds

Step-by-step explanation:

Answer: It wold take Emma  1/3 of a minute or 20 seconds to drink the entire milk shake.

Step-by-step explanation: Assuming Emma doesn't take any breaks and drinks the entire milk shake at the same rate as she drank the first  1/4, the ratio for solving this problem is:

1 /12 /1/4=t/1 or  t =4 /12  or  t =1/3

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