Question

Note: this is ratio math. In a class of 60 students, on average, 4 will be left-handed. If a class includes 6 “lefties”. Estimate how many students are in the class. The class has approximately ... students.

Answer 1

We will use the ratio method to solve this question

Class: Lefthanded

60 : 4

x. : 6

By using the cross multiplication

`\begin{gathered} x*4=60*6 \\ 4x=360 \end{gathered}`

Divide both sides by 4 to find x

`\begin{gathered} (4x)/(4)=(360)/(4) \\ x=90 \end{gathered}`

x represents the number of the students in the class

The class has 90 students