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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

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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