To solve the equation \( y \cdot 8 = 40 \) and find the value of \( y \):
1. Start with the given equation:
[tex]\[
y \cdot 8 = 40
\][/tex]
2. To isolate \( y \), you need to divide both sides of the equation by 8:
[tex]\[
y = \frac{40}{8}
\][/tex]
3. Perform the division:
[tex]\[
y = 5
\][/tex]
Therefore, \( y \) is equal to 5.
From the given choices:
- \( y = 5 \)
- \( y = 6 \)
- \( y = 320 \)
The correct answer is:
[tex]\[ y = 5 \][/tex]