Question

Bella weighs 110 lbs. How many kilograms does she weigh?

A) 49.9 kg
B) 55.2 kg
C) 67.1 kg
D) 77.8 kg

Answer 1

Bella weighs 110 lbs which converts to 49.9 kg using the conversion factor of 1 lb to 0.453592 kg. The answer is rounded to the tenths place based on standard practices related to significant figures.

Step-by-step explanation:

To convert Bella's weight from pounds to kilograms, we use the conversion factor: 1 pound is approximately equal to 0.453592 kilograms. Therefore, to convert 110 pounds to kilograms, we multiply:

110 lbs × 0.453592 kg/lb = 49.9 kg (approximately).

Bella weighs 49.9 kilograms.

When considering significant figures, we have to make sure that the final answer does not have more precision than the least precise measurement used in the calculation. Since we are not given any specific information about the precision of the 110 lbs value, we can assume a reasonable degree of precision and round to the tenths place, as demonstrated in the provided reference information. Therefore, the correctly rounded answer to the tenths place, in line with the given examples, is 49.9 kg.

Answer 2

a

Step-by-step explanation:

Because To convert pounds to kilograms, we use the conversion factor 1 lb = 0.45359237 kg.

So, to find out how many kilograms Bella weighs, we multiply her weight in pounds by the conversion factor:

Rounding to the nearest tenth, we get

So, Bella weighs approximately 49.9 kilograms.

The answer is consistent with option A)