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 impounds of all the babies born in the US in the year right the answer is scientific notation expressed to the exact decimal place
To find the approximate total weight of all the babies born in the US in a year, we multiply the average weight of a newborn (7.5 pounds) by the total number of babies born (4.1×10^6).
7.5 pounds/baby * 4.1×10^6 babies = 30.75×10^6 pounds
In scientific notation expressed to the exact decimal place, the approximate total weight is 3.075×10^7 pounds.
To find the approximate total weight in pounds of all the babies born in the US in one year, we can multiply the average weight of a newborn by the total number of babies born.
Average newborn weight = 7.5 pounds
Total number of babies born = 4.1 × 10^6
So, the approximate total weight in pounds would be:
Total weight = Average newborn weight × Total number of babies born
= 7.5 pounds × 4.1 × 10^6
Multiplying these values gives:
Total weight = 30,750,000 pounds
In scientific notation expressed to the exact decimal place, this will be:
Total weight = 3.075 × 10^7 pounds
To find the approximate total weight in pounds of all the babies born in the US in a year, you can multiply the average weight of a newborn by the total number of babies born.
Step 1: Convert the weight of a newborn to scientific notation.
The average weight of a newborn is 7.5 pounds. To express this in scientific notation, we can write it as 7.5 x 10^0 pounds.
Step 2: Express the total number of babies born in scientific notation.
The total number of babies born in the US every year is given as 4.1 × 10^6 babies.
Step 3: Multiply the average weight by the total number of babies.
To multiply numbers in scientific notation, you multiply the coefficients and add the exponents.
(7.5 x 10^0 pounds) x (4.1 x 10^6 babies) = (7.5 x 4.1) x (10^0 x 10^6) = 30.75 x 10^6 pounds.
Step 4: Express the result in scientific notation to the exact decimal place.
To express the result in scientific notation to the exact decimal place, we need to move the decimal point in the coefficient to create a number between 1 and 10.
30.75 x 10^6 pounds can be written as 3.075 x 10^7 pounds.
Therefore, the approximate total weight in pounds of all the babies born in the US in a year is approximately 3.075 x 10^7 pounds in scientific notation expressed to the exact decimal place.