Question

A baby weighs 8 pounds and 2 ounces. What is the baby's weight in SI system?

Answer 1

To convert the baby's weight of 8 pounds and 2 ounces to the SI system, first convert the pounds to kilograms (3.6288 kg), then convert the ounces to grams (56.7 g), and finally, combine these for the total weight in kilograms (approximately 3.6855 kg).

Step-by-step explanation:

The student asked how to convert the weight of a baby from pounds and ounces to the SI system, specifically kilograms and grams. In order to convert from pounds and ounces to the SI system, we use the conversion factors that 1 pound is equivalent to 0.4536 kilograms and 1 ounce is equivalent to 28.35 grams.

To find the baby's weight in SI units, the following steps are taken:

1. Convert the pounds to kilograms: 8 pounds * 0.4536 kilograms/pound = 3.6288 kilograms.
2. Convert the ounces to grams: 2 ounces * 28.35 grams/ounce = 56.7 grams.
3. Since 1 kilogram is equal to 1000 grams, we need to express 56.7 grams in kilograms, which is 0.0567 kilograms.
4. Add the kilograms from the pounds and the kilograms from the ounces: 3.6288 kilograms + 0.0567 kilograms = 3.6855 kilograms.

Therefore, the weight of the baby is approximately 3.6855 kilograms in the SI system.

Answer 2

To convert 8 pounds and 2 ounces to the SI system, we multiply the pounds by 0.4536 to get kilograms and the ounces by 28.35 to get grams, then convert grams to kilograms and add both for a total of approximately 3.6855 kilograms.

Step-by-step explanation:

To convert the baby's weight from pounds and ounces to the SI system, which uses kilograms, we need to first understand the weight equivalents: 1 lb is equal to 0.4536 kg, and 1 oz is equal to 28.35 g.

The baby weighs 8 pounds and 2 ounces. Let's convert the weight pound by pound and then ounce by ounce. For the pounds:

• 8 lb x 0.4536 kg/lb = 3.6288 kg

Now, we convert the ounces:

• 2 oz x 28.35 g/oz = 56.7 g

Since we want the weight in kilograms, we need to convert the ounce part from grams to kilograms by dividing by 1000 (because there are 1000 grams in a kilogram):

• 56.7 g / 1000 = 0.0567 kg

Now, we add the two parts together to get the baby's total weight in kilograms:

• 3.6288 kg + 0.0567 kg = 3.6855 kg

Therefore, the baby's weight in the SI system is approximately 3.6855 kilograms.