To determine if Julia will read 4 pages the next day, we first need to calculate her reading rate.
Julia read a total of 12 pages over 3 days. To find her daily reading rate, we divide the total pages by the number of days:
\[ \text{Daily reading rate} = \frac{\text{Total pages}}{\text{Total days}} = \frac{12 \text{ pages}}{3 \text{ days}} = 4 \text{ pages per day} \]
This means Julia is reading at a consistent pace of 4 pages each day.
Since her reading rate is 4 pages per day, if she continues at this pace, she will indeed read 4 pages the next day. Thus, the answer is yes; Julia will read 4 pages the next day, as it is her established reading rate.