Answer :
Subtracting the initial amount of water from the amount used, the remaining amount of water is given by:
1.) 3.075 gallons.
How to find the remaining amount of water in the barrel?
To find the remaining amount of water in the barrel, we have to subtract the initial amount by the amount used.
We have that:
- The initial amount was of 15 gallons.
- The amount used was of: 6.8 + 5 + 1/8(relative to the one-eight) = 11.925 gallons.
Hence the remaining amount is:
15 - 11.925 = 3.075 gallons.
Which means that option 1 is correct.
More can be learned about the subtraction between two amounts at https://brainly.com/question/17301989
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