The total cost per year is an illustration of rates.
The total cost per year is 6278x
The given parameters are:
[tex]\mathbf{Time = 8.2\ mins}[/tex]
[tex]\mathbf{Gallons = 17.2\ gallons}[/tex]
There are 365 days in a year.
So, the amount of water used to shower in a year is:
[tex]\mathbf{Water = Gallons \times 365}[/tex]
[tex]\mathbf{Water = 17.2 \times 365}[/tex]
[tex]\mathbf{Water = 6278}[/tex]
Assume the unit rate per gallon is x.
So, the total cost for 6278 gallons is:
[tex]\mathbf{Total = 6278 \times x}[/tex]
[tex]\mathbf{Total = 6278 x}[/tex]
Hence, the total cost per year is 6278x
Read more about unit rates at:
https://brainly.com/question/18065083
