Question

There are 28.35 g in an ounce and 2.21 lb in a kilogram. Juanita converts 3 kilograms to ounces. Is her conversion correct? Explain.

Answer 1

Juanita's conversion is not correct. To convert kilograms to ounces, you need to multiply the number of kilograms by 35,273.96, which is the number of ounces in a kilogram. Therefore, to convert 3 kilograms to ounces, you would multiply 3 by 35,273.96, which equals 105,821.88 ounces.

Juanita's conversion is incorrect because she used the conversion factor for pounds to kilograms (2.21 lb in a kilogram) instead of the conversion factor for ounces to grams (28.35 g in an ounce). This would result in an incorrect conversion from kilograms to ounces.

Answer 2

Her conversion expression is correct.

Her calculation is incorrect.

Her answer is incorrect.

Explanation:

The expression on the left side of the equal sign is correct.

She needs to multiply 3 by 1000 and divide by 28.35 to get the correct answer.

Instead, she multiplied 3 by 1000 and then multiplied by 28.35 and got an incorrect answer.

Her conversion expression is correct.

Her calculation is incorrect.

Her answer is incorrect.