To find the width of a rectangular prism, you can use the formula for the volume \( V \) of a rectangular prism, which is given by:
\[ V = \text{length} \times \text{width} \times \text{height} \]
In this case, you have:
- \( V = 100 \) cubic units
- \( \text{length} = 5 \) units
- \( \text{height} = 10 \) units
You can rearrange the formula to solve for the width:
\[ \text{width} = \frac{V}{\text{length} \times \text{height}} \]
Now substitute the known values:
\[ \text{width} = \frac{100}{5 \times 10} \]
Calculating the denominator:
\[ 5 \times 10 = 50 \]
Now, substitute back into the equation:
\[ \text{width} = \frac{100}{50} = 2 \]
Thus, the width of the rectangular prism is \( 2 \) units.