Question

Of the 30 students in the first period algebra 1 class, 18 are girls. If this class is representative of all classes, how many students in a school of 500 are girls?

Answer 1

\[\frac{18}{30}=\frac{x}{500}\]
\[x=\frac{500\times 18}{30}\]
\[x=300\]

Answer 2

300 would be the number of girls.

Answer 3

or thing that 18 out of 30 is three-fifths, and three-fifths of 500 is 300

Answer 4

Exactly.