For this problem we know that a bus travels 2,160 miles in 36 hours. And we want to estimate the average distance that the bus travels in 1 hour. So we can set up the following proportion rule:
![(2160mi)/(36hr)=(x)/(1hr)](https://img.qammunity.org/2023/formulas/mathematics/college/gg48xkhn0gbbe8rhdtm9909srj2jsot5jf.png)
Where x represent the variable of interest for this case. If we solve for x we got:
![x=1hr\cdot(2160mi)/(36hr)=6mi](https://img.qammunity.org/2023/formulas/mathematics/college/9iqlctl3e4apqx6675bugruu8l9hcr1wrx.png)
And then we can conclude that the answer would be 6 mi/hr or 6mi in 1 hour