Question

Jack's pet dog has been prescribed x mg of a medicine per day. Each pill of the medicine has 10 mg of the medicine. Jack has to give his dog a total of 30 pills. If Jack gave his dog medicine for 9 days, use the expression below to interpret the situation.
30 - 9x/10

Part A: What does x/10 represent?

Part B: What does the 9x/10 represent?

Part C: What does the entire expression represent?

Answer 1

Part a: x/10 represents the amount of pills given divided by the amount of mg's in each pill.
Part b: 9*x/10 represents the number of pills given in each day of the nine days and how many mg' are in the total dosage for the nine days.
Part c: If Jack has to give his dog 30 pills in nine days the entire expression represents the number of pills given to the dog each day and how many mg's of medicine the dog is consuming.

Answer 2

Every pill has 10 mg, and the number of pills the dog must eat every day depends on the daily prescription amount x. That is part a.

Since every day is the same, the pills eaten in 9 days is the part a. equation for one day times nine.
Illustration- After six days, 6 * (dailypills) were eaten: 6* (x/10)

The complete expression represents the number of pills the dog must still eat in the future. In total, this was 30 pills and every day that the dog eats some of the pills, this remainder is decreased.

Answer 3

Thank you both a lot :)