The ratio of paintings to sculptures is 7:6.
If there are 35 paintings in the museum, we can set up a proportion to find the number of sculptures.
Let \( x \) be the number of sculptures. According to the ratio:
\[ \frac{7}{6} = \frac{35}{x} \]
To find \( x \), we can cross-multiply:
\[ 7x = 6 \cdot 35 \]
Calculating the right side:
\[ 6 \cdot 35 = 210 \]
Now the equation looks like this:
\[ 7x = 210 \]
To solve for \( x \), divide both sides by 7:
\[ x = \frac{210}{7} = 30 \]
Therefore, there are 30 sculptures in the museum.