Answer:
G(t) = 15 - 1.25t
Step-by-step explanation:
Mason drove 4 hours spending 1.25 gallons per hour. In those 4 hours,
4 * 1.25 = 5,
5 gallons were used.
After driving 4 hours and using 5 gallons of gas, there were 10 gallons left.
Before the 4 hours of driving, the car had
10 gallons + 5 gallons = 15 gallons.
The full tanks is 15 gallons.
For each hour driven, the gas in the tank goes down by 1.25 gallons.
For t hours of driving, you must subtract 1.25t gallons from the 15 gallons of the full tank.
The equation is:
G(t) = 15 - 1.25t
Answer: G(t) = 15 - 1.25t
