Question

Imagine your typical 7-pound baby. This newborn baby should gain at least roughly 5 ounces per week after the fourth day of life until it is 6 months old. How much does ‘junior’ weigh after 6 months or in the 25th week of life?

Answer 1

The baby will weigh approximately 14.18 pounds after 6 months of birth.

Step-by-step explanation:

Step 1; The baby weighed 7 pounds when it was born and started gaining weight after the fourth day. We need to find the baby's weight 25 weeks after he's born. Since he only gains weight from the 5th day, we need to find the weight he gained in 24 weeks but we need to know his weight in the 25th week we need to calculate his weight in the 23rd week.

Step 2; If the baby gains 5 ounces a week, it will gain 23 times that 5 ounces after 23 weeks.

Weight gained in 23 weeks = 23 weeks × 5 ounces a week = 115 ounces.

By converting ounces into pounds, 115 ounces = 7.1875 pounds.

So the baby's weight in the 25th week = 7 + 7.1875 = 14.1875 pounds.