Y varies directly with x , and y is 84 when x is 16 .which equation represents this situation?

A) y=100x
B) y=5.25x
C) y= 1344x
D) y= 4/21x

Respuesta :

Answer:

[tex] \frac{y}{x} = \frac{84}{16} \\ = > \frac{y}{x} = \frac{21}{4} [/tex]

[tex]y = \frac{21}{4} x[/tex]

I think option D will be 21x/4

B : y=5.25 I took the quiz and this was the correct answer