To find the total weight of all the babies born in the U.S. in a year, we can multiply the average weight of a newborn by the number of babies born.
Average weight of a newborn = 7.5 pounds
Number of babies born = 4.1×10^6
Total weight = Average weight of a newborn * Number of babies born
Total weight = 7.5 pounds * 4.1×10^6 babies
Now, let's calculate the total weight in pounds:
Total weight = 7.5 * 4.1×10^6 pounds
= 30.75×10^6 pounds
= 3.075×10^7 pounds
Therefore, the approximate total weight of all the babies born in the U.S. in a year is approximately 3.075×10^7 pounds.
The average newborn weighs 7.5 pounds. About 4.1×10^6 babies are born in the United States every year. What is the approximate total weight in pounds of all the babies born in the U.S. in a year? Write the answer in scientific notation, expressed to the exact decimal place.
1 answer