Arturo O. answered • 05/03/18
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z = kx
k = z/x = 30/8 = 15/4
z = (15/4)x
Plug in x = 4 and get z = 15.
Lui V.
asked • 05/03/18Read description!!
If Z varies directly as x, and z = 30 when x = 8, find z when x =4
How exactly do you work this problem out?
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