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Answer:
The answer would be 23.5 gallons of gas.
Step-by-step explanation:
You take away 14.4 gallons from the max capacity (19.1). Which gets you 4.7, the you take that away from 12.8 gallons. Which gets you 8.1 gallons. Then you take away 3.7 from 19.1 (15.4). Then add 8.1 and 15.4(23.5) So 23.5 is how many gallons of gas was used.
Hope this helps!
We want to see how much gas did Simpsons use on the trip.
The total amount of gas used in this trip is 23.5 gallons of gas.
We know that:
The maximum capacity of the tank is 19.1 gal.
The trip starts with 12.8 gal on the tank.
After two hours, he fills the tank to capacity with 14.4 gal.
Then at this moment, he had:
19.1 gal - 14.4gal = 4.7 gal.
Knowing that he started with 12.8 gal, this means that at this point the total amount of gas used is:
12.8 gal - 4.7 gal = 8.1 gal.
Ok, now the car has 19.1 gal of gas. We know that at the end of the trip, the car has 3.7 gallons of gas, then the amount consumed this time is:
19.1 gal - 3.7gal = 15.4 gal
The total amount consumed is:
8.1gal + 15.4 gal = 23.5 gal
So we can conclude that the total amount of gas used in this trip is 23.5 gallons of gas.
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