InnocentSoul
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Suppose x varies directly with y and x=24 when y =-96. what is the constant of variation and what is the value of x when y=-164?

A. cov = -4, x=656
B. cov = -4, x=41
C. cov = -1/4, x=41
D. cov= -1/4, x=-41

Respuesta :

chaseashley24

Answer:

B

Step-by-step explanation:

30. You want to solve for k and use it with a different y-value.


... y = kx


... -96 = k·24


... -96/24 = k = -4


For y = -164, you have


... -164 = -4·x


... -164/-4 = x = 41


The coefficient of variation is -4, x is 41.



zainebamir540

Answer:

Choice B is correct.

Step-by-step explanation:

Firstly, we have to find constant of variation.

y= kx         eq(1)

Given y= -96 and x= 24

put above values in eq(1)

-96=k(24)

dividing above equation by 24

-96/24=24k/24

-4=k

so eq(1) becomes y=-4x

Secondly, we have to find value of x when y=-164

-164=-4x

dividing by -4 by above equation.

-164/(-4)=-4x/(-4)

41=x

so, k=-4 and x=41.


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