Question

Suppose that in 2005, 894,700 citizens died of a certain disease. Assuming the population of the country us 302 million, what was the mortality rate in units of deaths per 100,000 people?

Answer 1

$\bf \begin{array}{ccll} population&dead\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 302,000,000&894,700\\\\ 100,000&d \end{array}\implies \cfrac{302,000,000}{100,000}=\cfrac{894,700}{d} \\\\\\ d=\cfrac{100,000\cdot 894,700}{302,000,000}$