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patriot [66]
2 years ago
13

Y is directly proportional to x. when y=30, x=6. A) work out an equation connecting y and x. B) work out what the value of y whe

n x=12.
Mathematics
1 answer:
Arturiano [62]2 years ago
4 0

Answer:A)Y =k x

               Y =5x

              B.Y=60

Step-by-step explanation:

Given that Y is directly proportional to x

mathematically , it Is represented as

Y ∝ x

Introducing the constant of proportionality, k. we have that

Y =k x

Now when y=30, x=6, k becomes

30=k 6

k=30/6=5

we now have the equation connecting them as

Y =5x

B) Now when x=12, y becomes

Y =5x

Y =5 X 12

Y=60

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For the LCM, you need non-common factors and common factors with the larger exponent. Then you multiply together all the factors you use.

2 is a common factor. Both numbers have 2^2, so choose 2^2.

3 is not common. Use 3^2.

11 is not common. Use 11.

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