Explanation:
A doctor prescribes a medication to a 169 lb patient. The dosage of the medication is 5 mg/kg. We have to find the amount of medication that the patient should be given.
The unit of the dosage is mg/kg and we know the patient's weight is in lb. We have to convert the weight from lb to kg. We know that 1 lb is equal to 0.4536 kg. We can use that conversion to find the answer to our problem.
1 lb = 0.4536 kg
weight = 169 lb * 0.4536 kg/lb
weight = 76.66 kg
medication = 5 mg/kg * 76.66 kg
medication = 383.3 mg
Answer: the patient should be given 383.3 mg of the medication.
