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16-04-2015
Mathematics

contestada

if y=(-4/5)x-2, what is the value of x when y= -9

A. -35/4

B.-55/4

C. 35/4

D. 55/4

Respuesta :

16-04-2015

[tex]y= -\frac{4}{5}x-2 \\ y=9 \\ 9= -\frac{4}{5}x-2 \\ \frac{4}{5}x=-11 \\ x=(-11)*\frac{5}{4}=-\frac{55}{4}[/tex]

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