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oblivion
oblivion oblivion
  • 03-03-2015
  • Mathematics
Answered



The value of y varies directly with the value of x, and y = 12 when x = 4.


Which equations represent the relationship between y and x?


Choose exactly two answers that are correct.

Ay/x=3

Bxy=3

Cx=3y

Dy=3x

Verified Answer :

nicolelle nicolelle
  • 03-03-2015

You can basically plug in the numbers for x and y into the options:

A. y/x = 3
12/4 = 3, so this one is right

B. xy = 3
124 = 48, so this is wrong

C. x = 3y
312 = 36, which is not x (4), so this is wrong

D. y = 3x
3*4 = 12, which is y (12), so this is right

So, A and D are right

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