if y is directly proportional to x and y= 20 when x = 4

Question

if y is directly proportional to x and y= 20 when x = 4

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Skylar 5 months 2021-08-16T13:13:18+00:00 1 Answer 0 views 0

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    0
    2021-08-16T13:14:24+00:00

    Explanation:

    the initial statement is

    y

    x

    to convert to an equation multiply by k the constant

    of variation

    y

    =

    k

    x

    to find k use the given condition

    y

    =

    5

    when

    x

    =

    2

    y

    =

    k

    x

    k

    =

    y

    x

    =

    5

    2

    equation is

    ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

    2

    2

    y

    =

    5

    2

    x

    =

    5

    x

    2

    2

    2

    −−−−−−−−−−−−−−−−−−

    when

    x

    =

    16

    then

    y

    =

    5

    2

    1

    ×

    16

    8

    =

    5

    ×

    8

    =

    40

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14:4+1-6*5-7*14:3+5 = ? ( )