Final answer:
To convert 17 lb 9 oz to kilograms, first convert the weight to ounces (281 ounces) and then divide by the conversion factor, resulting in approximately 7.97 kg. As a whole number, the weight is 8 kg.
Step-by-step explanation:
To convert the weight of a toddler from pounds and ounces to kilograms, we need to follow a two-step process. First, we convert the entire weight into ounces, and then convert these ounces into kilograms. There are 16 ounces in one pound. So, if a toddler weighs 17 lb 9 oz, the total weight in ounces is (17 pounds x 16 ounces/pound) + 9 ounces, which equals 281 ounces.
Next, we convert ounces to kilograms. There are approximately 35.274 ounces in one kilogram. Therefore, the weight in kilograms is 281 ounces ÷ 35.274 ounces/kg, which equals approximately 7.97 kg. As we are asked for a whole number, we round this to the nearest whole number, giving an answer of 8 kg.