Question

Trina's car uses 10 gallons of gas to travel 120 miles. If she has 5 gallons of gas in the tank, how much more gas will she need to drive 204 miles?

Answer 1

Need to break down the question.
10 gallons = 120 miles or 10g = 120. Divide 10 to the other side and g = 12.
So this is 1 gallon of gas = 12 miles.
She has 5 gallons so 5 x 12 = 60.
She needs to drive so first take the 204 then subtract 60. 204-60 = 144.
144 = 12g. 144/12 = 12.
She needs 12 more gallons of gas.