Question

If a pitcher strikes out 5 batters in 4 innings how many batters is it likely he will strike out in, 9 innings round to the nearest whole number

Answer 1

$\bf \begin{array}{ccllll} batters&innings\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 5&4\\ x&9 \end{array}\implies \cfrac{5}{x}=\cfrac{4}{9}$

solve for "x".