To find out how many days it will take Milly to sell 56 boxes of Girl Scout cookies, we can set up a proportion based on her sales rate.
Milly's selling rate is:
- 8 boxes in 3 days.
We want to find out how many days (let's call it \( x \)) it will take her to sell 56 boxes. We can set up the proportion as follows:
\[ \frac{8 \text{ boxes}}{3 \text{ days}} = \frac{56 \text{ boxes}}{x \text{ days}} \]
Now, we can cross-multiply and solve for \( x \):
\[ 8x = 56 \cdot 3 \]
Calculating \( 56 \cdot 3 \):
\[ 56 \cdot 3 = 168 \]
So we have:
\[ 8x = 168 \]
Now divide both sides by 8:
\[ x = \frac{168}{8} = 21 \]
Thus, it will take Milly 21 days to sell 56 boxes.
Response: 21 days
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