## Thinking Mathematically (6th Edition)

$1~lb \approx 0.45~kg$ We can convert 10 pounds to units of kilograms. $10~lb = \frac{10~lb}{1}\times \frac{0.45~kg}{1~lb}$ $10~lb = 4.5~kg$ We can see that the original statement is true. A 10-pound object weighs more than a 4-kilogram object.