To find out how many days it will take Mallory to run 24 miles at a rate of \( \frac{3}{4} \) of a mile per day, we can use the formula:
\[ \text{Number of days} = \frac{\text{Total miles}}{\text{Miles per day}} \]
In this case, we have:
\[ \text{Total miles} = 24 \text{ miles} \] \[ \text{Miles per day} = \frac{3}{4} \text{ miles} \]
Now, substituting these values into the formula:
\[ \text{Number of days} = \frac{24}{\frac{3}{4}} \]
To divide by a fraction, we multiply by its reciprocal:
\[ \text{Number of days} = 24 \times \frac{4}{3} \]
Calculating this:
\[ \text{Number of days} = \frac{24 \times 4}{3} = \frac{96}{3} = 32 \]
Thus, it will take Mallory 32 days to run 24 miles at a rate of \( \frac{3}{4} \) of a mile per day.