The formula to calculate the Length of Material Produced (L) is:
\[ L = S \times M \]
Where:
Let's say the speed of the machine (S) is 30 inches per minute, and the time the machine operates (M) is 10 minutes. Using the formula:
\[ L = 30 \times 10 \]
We get:
\[ L = 300 \, \text{inches} \]
So, the length of material produced is 300 inches.