87.5k views
4 votes
Explain how to use the unit-factor method to convert 120 pounds to kilogramsTo write the unit factors, use the / symbol, like this: 1 gallon/3.79 liters.

1 Answer

1 vote
Step-by-step explanation

We know the following relation between pounds (lbs) and kilograms (kg):


1\text{ }lb=0.4536\text{ }kg\Rightarrow1=\frac{0.4536\text{ }kg}{1\text{ }lb}.

The unit-factor method consists in multiplying the quantity expressed in pounds by the expression above and then cancelling the lb to obtain the result in kg:


120\text{ }lb*\frac{0.4536\text{ }kg}{1\text{ }lb}=(120*0.4536)* kg=54.432\text{ }kg.Answer

120 lb = 54.432 kg

User Tyler Davis
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories