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claireroche1
Ait would be a ratio of 5:1, y=5x
B) if x is 12, it has doubled, so you do the same to y, so it would be 60

A. Our required equation connecting y and x would be y = 5x.

B. Value of y when x=12 is 60.

What is equation?

Equation, statement of equality between two expressions consisting of variables and/or numbers.

Given

y is directly proportional to x. When y=30, x=6

A. As there is direct proportion between x and y.

So, it becomes,

\(\frac{y}{x} =k\)

\(\frac{30}{6} =k\)

k = 5

So, the equation connecting y and x would be y = kx

When we put the value of k, we get that y = 5x.

Hence, our required equation would be y = 5x.

B. Value of y when x = 12

y = 5x

Substitute x = 12 in above equation

y = 5(12)

y = 60

Hence, Value of y when x=12 is 60.

Find out more information about equation here

https://brainly.com/question/13170101

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