Question

The linear model P = 3.75g + 1.5 predicts the total cost , P, in dollars, to purchase g gallons of gas at a gas station.Based on the linear model, how much should it cost to purchase 12 gallons of gas

Answer 1

It would cost $46.50 to buy 12 gallons of gas.

Explanation:

1. Replace the variables in
`P = 3.75g + 1.5` with the values you know:

`P = 3.75g + 1.5, \text{ where } g =12\\P=3.75(12)+1.5`

2. Solve for P:

`P=3.75(12)+1.5\\P=45+1.5\\P=46.5`