Final answer:
To convert the weight from pounds and ounces to kilograms, you can use conversion factors. The weight of the patient is approximately 79.6 kg, which rounds to 79.7 kg when rounded to the tenths place.
Step-by-step explanation:
The weight given in the question is 175 lbs 7 oz. To convert this weight to kilograms, we need to first convert the pounds to kilograms and then add the weight in ounces.
1 lb is approximately equal to 0.4536 kg and 1 oz is approximately equal to 0.02835 kg. Using these conversion factors, we can calculate:
175 lbs * 0.4536 kg/lb + 7 oz * 0.02835 kg/oz = 79.383 kg + 0.19845 kg = 79.58145 kg
Rounded to the tenths place, the weight of the patient is approximately 79.6 kg. Therefore, the correct answer is a. 79.7 kg.