To find the total distance run by the 9 runners, you can multiply the distance each runner runs by the number of runners:
\[ \text{Total distance} = \text{Number of runners} \times \text{Distance per runner} \]
In this case, the distance each runner runs is \( \frac{3}{4} \) of a kilometer. Therefore:
\[ \text{Total distance} = 9 \times \frac{3}{4} \]
Calculating this:
\[ 9 \times \frac{3}{4} = \frac{27}{4} \text{ kilometers} \]
To convert \( \frac{27}{4} \) kilometers into a more readable format:
\[ \frac{27}{4} = 6.75 \text{ kilometers} \]
So, the total distance run by the 9 runners is 6.75 kilometers.