Respuesta :
Answer:
30 Weeks
Step-by-step explanation:
Subtract 90 kg from 105 kg. (15 kg left over)
Since we are now measuring in kilograms, we have to turn the 500 g into kilograms.
1000 grams make up a kilogram, but we have 500 grams. Convert 500 grams into a kilogram. (0.5 kg or 2 kg)
Multiply: 15 x 0.5/2= 30
It will take Peter 30 weeks for him to weigh 90 kg.