Question

Javier's fuel tank holds 12 3/4 gallons of gasoline when completely full. He had some gas in the tank and added 10.3 gallons of gasoline to fill it completely.

Answer 1

2.45 gallons of gasoline were in the tank before.

Explanation:

Consider the provided information.

The tank can hold
`12(3)/(4)` 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.

`12(3)/(4)-10.3=(51)/(4)-10.3`

`=12.75-10.3`

`=2.45`

Hence, 2.45 gallons of gasoline were in the tank before.