A pharmacist needs to combine a mixture for a patient. She uses 5 mg of antibiotic for 25 mg of the mixture. If the patient needs 100 mg of the mixture, how much antibiotic should the pharmacist use?

20 mg

30 mg

80 mg

120 mg

500 mg

Question

Luka Silva

30 March, 15:30

+5

Answers (1)

Know the Answer?

Johanna Charles · Answer 1

20 mg

Step-by-step explanation:

5/25 mg

multiply 25 by 4 to get 100 so also multiply 5 by 4 to get 20 mg of the antibiotic.

A pharmacist needs to combine a mixture for a patient. She uses 5 mg of antibiotic for 25 mg of the mixture. If the patient needs 100 mg of the mixture, how much antibiotic should the pharmacist use?20 mg30 mg80 mg120 mg500 mg