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dolphi86 [110]
3 years ago
7

According to data on the website for the Centers for Disease Control and Prevention (CDC), 35% of American adults were obese in

2011-2012* . In this report, adults were considered to be 20 years of age or older. According to the U.S. Census Bureau, about 72% of Americans are adults (20 and over). Use the U.S. Population estimate of 312 million people to calculate the number of American adults age 20 and older in 2011-2012. Enter answer as a number in standard form.
Mathematics
1 answer:
Serggg [28]3 years ago
7 0

Answer: 2.2464 × 10^8

Step-by-step explanation:

Percentage of obese Americans in 2011 - 2012 = 35%

Percentage of Americans who are adult = 72%

United States population estimate = 312 million

Adult = age 20 and above

Number of adult Americans (age 20 and above) :

72% of the total united states estimated population

72% of 312,000,000

72/100 × 312,000,000

0.72 × 312,000,000

= 224,640,000

Hence, estimated Adult American population (age 20 and above) = 224,640,000

2.2464 × 10^8

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Explanation:

I'm assuming HM stands for Harmonic Mean in this case.

If so, then we apply the reciprocal operation to each value to get 1/2 and 1/8 (from 2 and 8 respectively).

Add up those fractions:

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Now we'll divide n = 2 over that result. The n = 2 refers to the number of items in the original set.

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To convert to a mixed number, we can do the following:

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