mizbetteqkamicholo mizbetteqkamicholo

21-07-2016
Mathematics

contestada

If x varies directly as y, and x = 48 when y = 16, find x when y = 5.

Respuesta :

meerkat18 meerkat18

21-07-2016

x directly varies with y which means as x increases, y also increases. In this case, we represent a constant of proportionality of k.

Applying laws of proportionality,

x =k y
48 = k* 16
k = 3

when y is 5
x = k y
x = 3* 5
x = 15

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