Question

A certain allergen affects approximately 7 people per 10,000 in the United States. Assuming the U.S. population is approximately 325 million people, how many people suffer from this allergen?

Answer 1

Explanation:

`total \: number \: of \: people \: \\ suffering \: from \: the \: allergen \\ = 325 \: million \: * (7)/(10000) \\ \\ = 325 \: * {10}^(6) \: * (7)/(10^(4) ) \\ \\ = 325 \: * {10}^(2) \: * 7 \\ \\ = 32500 * 7 \\ \\ = 227500 \\ \\ \because \: 1 \: million \: = {10}^(6)`