Elizabethvick2007 Elizabethvick2007

14-09-2020
Mathematics

contestada

. If y varies directly with x, and y = -35 and x=7, what is x when y = -85?

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wegnerkolmp2741o wegnerkolmp2741o

14-09-2020

Answer:

x = 17

Step-by-step explanation:

Direct variation is given by

y = kx where k is the constant of variation

-35 = k*7

-35/7 = k

-5 = k

y = -5x

We know y = -85

-85 = -5x

Divide each side by -5

-85/-5 = x

17 =x

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