Question

how many kilograms does a 150 pound patient weigh? (1 kg = 2.2 lb)

1. none of the above
2. 68.2 kg
3. 0.15 kg
4. 330 kg

Explanation:

Step1: Set up conversion formula

Let $x$ be the weight in kilograms. We know that $1$ kg = $2.2$ lb, so the formula is $x=\frac{150}{2.2}$.

Step2: Calculate the value

$x=\frac{150}{2.2}\approx68.18\approx68.2$ kg.

Answer:

B. 68.2 kg