Question

Practice

Complete this assessment to review what you've learned. It will not count toward your grade.
The average newborn weighs 7.5 pounds. About 4.1 x 106 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 point)

Answer 1

The approximate total weight of babies born in the U.S. in a year is 3.075 x 10^7 pounds.

Step-by-step explanation:

To find the approximate total weight of all the babies born in the U.S. in a year, we need to multiply the average weight of a newborn by the number of babies born in a year. The average weight is 7.5 pounds, and the number of babies born is 4.1 x 10^6.

Therefore, the approximate total weight can be calculated by multiplying: 7.5 pounds/baby x 4.1 x 10^6 babies/year = 30.75 x 10^6 pounds/year.

Expressed in scientific notation to the exact decimal place, the answer is 3.075 x 10^7 pounds/year.

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