To find the ratio of the number of brownies with nuts on top to the total number of brownies, we first need to determine the total number of brownies.
Rose baked:
- 7 brownies with nuts
- 3 brownies without nuts
Now, we calculate the total number of brownies:
\[ \text{Total brownies} = \text{Brownies with nuts} + \text{Brownies without nuts} = 7 + 3 = 10 \]
Next, we set up the ratio of brownies with nuts to the total number of brownies. The number of brownies with nuts is 7, and the total number of brownies is 10. Thus, the ratio is:
\[ \text{Ratio} = \frac{\text{Brownies with nuts}}{\text{Total brownies}} = \frac{7}{10} \]
Therefore, the ratio of the number of brownies with nuts on top to the total number of brownies is:
\[ \frac{7}{10} \]