Question

the gas tank in addisons new car can hold 28 gallons of gas. she currently has 9 gallons of gas, and she wants to fill her tank before starting her road trip to the grand canyon. let g represent how many more gallons of gas it will take to fill addisons gas tank. which equation models the problem? 9 + g = 28, g - 9 = 28. solve this equation to find how many more gallons of gas it will take to fill addisons gas tank. gallons

Explanation:

Step1: Identify the correct equation

The current gas (9 gallons) plus the additional gas (g gallons) should equal the tank's capacity (28 gallons). So the equation is \( 9 + g = 28 \).

Step2: Solve the equation

Subtract 9 from both sides: \( 9 + g - 9 = 28 - 9 \)
Simplify: \( g = 19 \)

Answer:

The equation is \( 9 + g = 28 \), and the number of gallons needed is 19.