Final answer:
To find out how many gallons a family uses every day for drinking, we multiply the total water used by the percentage used for drinking. In this case, the family uses 68.4 gallons of water a day and 15.2% of that is used for drinking. Therefore, the family uses approximately 10.4 gallons of water every day for drinking.
Step-by-step explanation:
To find out how many gallons a family uses every day for drinking, we need to multiply the total water used by the percentage used for drinking. In this case, the family uses 68.4 gallons of water a day and 15.2% of that is used for drinking.
To calculate the amount used for drinking, we can use the formula: amount used for drinking = total water used x percentage used for drinking.
amount used for drinking = 68.4 gallons x 15.2%
Let's calculate it:
amount used for drinking = 68.4 gallons x 0.152
amount used for drinking = 10.3968 gallons
So, the family uses approximately 10.4 gallons of water every day for drinking.