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14 October, 17:27

Suppose y varies directly with x, and y=25 when x=140. What is the value of x when y=36?

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  1. 14 October, 17:41
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    Make y equal to the constant (k) multiplied by x which is. Y=KX Then put the numbers in it therefore k=0•18. Then put the new values into the y=KX 36=0•18x, X=36/0•18 therefore x=200
  2. 14 October, 20:40
    0
    Y=25 ... x=140

    y=36 ... x=?

    x = (36*140) / 25

    x=5040/25

    x=201,6
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