Question

For every three girls taking classes at a

martial arts school, there are 4 boys
who are
taking classes. If there are 236 boys
taking
classes, predict the
number of girls taking
classes at the school.

Answer 1

We would predict 177 girls

Explanation:

We can set up a proportion

`(Girls)/(Boys)` =
`(Girls)/(Boys)` Put in the number that I know and solve for the number that I do not know.

`(3)/(4)` =
`(g)/(236)` I can cross multiply to solve for x

4g = 3(236)

4g = 708 Divide both sides by 4

g = 177