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Vsevolod [243]
2 years ago
5

The values of x and y vary directly and one pair of values are given. write an equation that relates x and y. simplify completel

y.
x=12, y=3
y= ? / ? x
Mathematics
1 answer:
meriva2 years ago
8 0

Answer:

y= ? / ? x

==> y = 12/3 x

y = 4x

Step-by-step explanation:

x \: and \: y \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  let \: the \: relation \: be \: k\\ x = ky  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\  - ky =  - x  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\ ky = x  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\ k =  \frac{x}{y}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\ k =  \frac{12}{3}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\ k = 4

K = 4

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