This problem is providing the water consumption in Mexico as 88 billion m³ and the Mexican population as 127.5 million people so that the per capita daily water use is required and found to be 690 m³/person according to the following:
In chemistry, the use of dimensional analysis and units conversion covers a wide range of calculations, necessary to report a result in a specific way. In this case, we see this problem asks for the consumption of water, in cubic meters, that each person does every day.
Thus, with a view to calculating this, one must first write this values without any million or billion system as shown below:
[tex]88billion\ m^3=88.000.000.000 m^3 =8.8x10^{10}m^3\\\\127.5million\ people=127.500.000 people=1.275x10^8people[/tex]
This means we can get the per capita daily water use by simply dividing these two:
[tex]\frac{8.8x10^{10}m^3}{1.275x10^8people}\\\\= 690\frac{m^3}{person}[/tex]
Learn more about dimensional analysis: https://brainly.com/question/10874167
