Answer:
2.45 gallons of gasoline were in the tank before.
Step-by-step explanation:
Consider the provided information.
The tank can hold [tex]12\frac{3}{4}[/tex] gallons of gasoline when completely full. He had some gas in the tank and added 10.3 gallons of gasoline to fill it completely.
We need to find: How many gallons of gasoline were in the tank before Javier added some?
For this, we need to subtract added gallons of gasoline from the capacity of the tank.
[tex]12\frac{3}{4}-10.3=\frac{51}{4}-10.3[/tex]
[tex]=12.75-10.3[/tex]
[tex]=2.45[/tex]
Hence, 2.45 gallons of gasoline were in the tank before.
