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308,827,000 people live in US 6.5% are children under 5, how many were under age 5

in 2012 there were 308,827,00 people living in the US.  6.5% of those were children under the age of 5.  How many were under the age of 5?  round to the nearest whole child. show what operation using with what number.
 
 
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3 Answers

Total population = 308,827,000
Percent of kids under 5 = 6.5%
Total population of kids under 5 = x
 
solving for x
 
x = 6.5% × 308,827,000
 
remember that z% = z/100. so 6.5% would be 6.5/100
 
x = 6.5 × 308,827,000
     100            1
 
the zeros cancel out
 
x = 6.5 × 308,827,000
      100            1
 
x = 6.5 × 3,088,270
 
x = 20,073,755
 
So there are 20,073,755 children under 5
Regin,
           6.5% can be written as a decimal. In order to do this move the decimal point 2 places to the left and remove the % sign. Therefore 6.5 is written .065 as a decimal. Then you can multiply 308,827,000 and .065 in order to find your answer.
Remember to round the nearest whole number.
 
I hope this helps.
 
John
 
Express the percent as a decimal value by dividing by 100. Remember that 6.5% means 6.5 per 100 = 6.5/100 = 0.065.
 
Multiply the population by the decimal equivalent of 6.5%, that is by 0.065.
 
308,827,000 x 0.065 = 20,073,755 children under age 5.