karidaSet6akeC1 karidaSet6akeC1

18-06-2016
Mathematics

contestada

If y varies directly as x, and y = -18 as x = -2, find y for the x-value of 20.

Respuesta :

18-06-2016

Hello,

y=k*x
-18=k*(-2)===>k=9

if x=20
y=9*20=180

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