document.write( "Question 1208744: It is estimated that 30 percent of all adults in the United States are obese and that 3 percent suffer
\n" ); document.write( "from diabetes. If 2 percent of the population both is obese and suffers from diabetes, what
\n" ); document.write( "percentage of the population either is obese or suffers from diabetes?
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Algebra.Com's Answer #847170 by math_tutor2020(3817)\"\" \"About 
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\n" ); document.write( "Let's say hypothetically there are 1,000,000 adults in the US.\r
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\n" ); document.write( "\n" ); document.write( "30% of which are obese, so 0.30*(1,000,000) = 300,000 adults are obese.
\n" ); document.write( "3% have diabetes, so 0.03*(1,000,000) = 30,000 adults have diabetes.
\n" ); document.write( "2% have both conditions, 0.02*(1,000,000) = 20,000 adults are obese and diabetic.\r
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\n" ); document.write( "\n" ); document.write( "A = set of people who are obese
\n" ); document.write( "B = set of people who are diabetic
\n" ); document.write( "n(A or B) = n(A) + n(B) - n(A and B)
\n" ); document.write( "n(A or B) = 300,000 + 30,000 - 20,000
\n" ); document.write( "n(A or B) = 310,000 people are obese, diabetic, or both.\r
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\n" ); document.write( "\n" ); document.write( "(310,000)/(1,000,000) = 0.31 = 31% of the population is obese, suffers from diabetes, or both.\r
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\n" ); document.write( "\n" ); document.write( "Answer: 31%
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