Question

This is ratio math In class of 40 students, on average, 6 will be left handed. If a class includes 21 lefties, estimate how many students are in the class. The class had approximately... students.

Answer 1

x = total students in the class

so

`\begin{gathered} (40)/(6)=(x)/(21) \\ x*6=40*21 \\ 6x=840 \\ (6x)/(6)=(840)/(6) \\ x=140 \end{gathered}`

Answer: the class had approximately 140 students