Answer:
44.805 kg
Step-by-step explanation:
Step 1
Convert mg to kg
Caroline weighs 41,390,000 mg
1 mg = 0.000001 kg
41,390,000 mg = x
x = 41,390,000 mg × 0.000001 kg
= 41.39 kg
Step 2
Converting her baby sister weight to kg
1000g = 1 kg
3415 g = x
Cross Multiply
1000x = 3415g × 1 kg
x = 3415g × 1 kg/1000
x = 3.415 kg
Therefore, the total weight in kilograms is
41.39 kg + 3.415 kg
= 44.805 kg
