From the statement of the first problem, we know that:
0. the canteen holds 48 oz of water,
,
1. the hiker drinks 4 oz per 3/4 of a mile.
From point 2, we can compute the ratio of miles that the hiker does per oz water that he drinks:
![r=((3)/(4)ml)/(4oz)=(3)/(4\cdot4)(ml)/(oz)=(3)/(16)(ml)/(oz)\text{.}](https://img.qammunity.org/2023/formulas/mathematics/college/jy1jv25jwivg2hjcrlrh7golxlkkfmgmsj.png)
Now, if we multiply the ratio by the amount of water that the hiker has, we get the number of miles that he can walk:
![r\cdot48oz=(3)/(16)(ml)/(oz)\cdot48oz=9ml\text{.}](https://img.qammunity.org/2023/formulas/mathematics/college/wy2n8dg8rgrwa3tvx9em14chg5wsusmlqh.png)
Answer
The hiker can walk 9 miles before running out of water.