Jayne stopped to get gas before going on a road trip. The tank already had 4 gallons of gas in it. Which equation relates the total amount of gasoline in the tank, y, to the number of gallons that she put in the tank, x?

Answer 1

The equation that relates the total amount of gasoline in the tank, \( y \), to the number of gallons that Jayne put in the tank, \( x \), can be written as:

\[ y = x + 4 \]

Here's the reasoning:
- \( x \) is the number of gallons Jayne put in the tank.
- The tank already had 4 gallons of gas initially.
- So, the total amount of gasoline, \( y \), is the sum of the initial amount (4 gallons) and the additional gallons (\( x \)) that Jayne put in the tank.