y is directly proportional to x. When y=30, x=6. What is the value of y when x= 12​

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y is directly proportional to x. When y=30, x=6. What is the value of y when x= 12​

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Amity 5 years 2021-08-03T18:20:36+00:00 1 Answers 18 views 0

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  1. Dau
    0
    2021-08-03T18:22:26+00:00
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    Answer:

    The value of y when x = 12 is equal to 60.

    Step-by-step explanation:

    Since, y is directly proportional to x, then it can be written as follows.

    y ∝ x

    y = kx                                 … (1)

    It is given that when y =30 and x = 6 then y is directly proportional to x.

    Substitute 30 for y and 6 for x in equation (1) as follows:

    30 = k(6)

    k =  

    k = 5

    To obtain the value of y if x = 12, then substitute 12 for x and 5 for k in equation (1) as follows:

    y = 5(12)

    y = 60

    Therefore, the value of y when x = 12 is equal to 60.

    hope this helped 🙂

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