Ismahbath15 Ismahbath15

01-11-2017
Mathematics

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assume y varies directly as x. if y=8 when x=42; find y when x=126

Respuesta :

01-11-2017

varies directly basically means a multiple of

y = kx

where "k" is the constant of variation. You must solve for this first using the given information.

8 = 42k
8/42 = k
0.19= k

Equation: y = 0.19x
when x = 126
y = 0.19(126)
y = 24

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