Final answer:
The patient took a total of 150 milligrams of antibiotic over the course of four days by adding the daily dosages together.
Step-by-step explanation:
The total amount of antibiotics taken by the patient over the four days can be calculated by adding the dosage from each day together:
- Day 1: 60 milligrams
- Day 2: 45 milligrams
- Day 3: 30 milligrams
- Day 4: 15 milligrams
To find the total milligrams of the antibiotic taken, we sum these amounts:
60 mg + 45 mg + 30 mg + 15 mg = 150 mg
Therefore, the patient took a total of 150 milligrams of the antibiotic over the course of four days.