Answer:
The average amount of coffee consumed per day was 0.14 lb
Explanation:
we know that
To find out the average amount of coffee consumed per day, divide the total amount of coffee consumed by the number of days
Let
x -----> the total amount of coffee consumed in pounds
y ----> the number of days
we have
To find out the total amount of coffee consumed subtract 3 lbs from 30 lbs


so

therefore
The average amount of coffee consumed per day was 0.14 lb