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10 December, 20:14

Suppose that (y) varies with (x). Write an equation for the inverse variation.

y=4 when x=7

A: y = x/28

B: y=3x

C: x = y/3

D: y = 28/x

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Answers (1)
  1. 10 December, 22:55
    0
    y = k/x, where k is the constant

    if x = 7 and y = 4

    4=k/7

    k = 4*7 = 28

    y = 28/x

    answer is D
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