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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.

Respuesta :

solution

x = total students in the class

so

[tex]\begin{gathered} \frac{40}{6}=\frac{x}{21} \\ x\times6=40\times21 \\ 6x=840 \\ \frac{6x}{6}=\frac{840}{6} \\ x=140 \end{gathered}[/tex]

Answer: the class had approximately 140 students

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