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26 March, 07:30

If y is directly proportional to x and Y = 40 when x=4 what is the value of x when y = 23

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  1. 26 March, 07:50
    0
    2.3

    Step-by-step explanation:

    Since y is directly proportional to x,

    y = kx.=> 40=k X 4=> k=10So y=10xIf we put y=23 in the above equation, x=2.3or 40:4 = 23:x=>x=2.3
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