Answer:
Amount of gas = 3.2 gallons
Required coordinate pair is (3.2, 12)
Step-by-step explanation:
Let x be the number of gallon of gas.
Given:
Berto has ⇒ y = $12
Gas cost per gallon ⇒ $3.75
Solution:
Using below formula.
Number of gallon of gas = ![\frac{Total\ cost}{Gas\ cost\ per\ gallon}](https://tex.z-dn.net/?f=%5Cfrac%7BTotal%5C%20cost%7D%7BGas%5C%20cost%5C%20per%5C%20gallon%7D)
Now, we substitute total cost and gas cost per gallon.
![x=\frac{12}{3.75}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B12%7D%7B3.75%7D)
![x=3.2\ gallon\ of\ gas](https://tex.z-dn.net/?f=x%3D3.2%5C%20gallon%5C%20of%5C%20gas)
Therefore, Berto can buy 3.2 gallon of gas and required coordinate pair is (3.2, 12).