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22 March, 17:14

Solve the proportion. 8/d = - 12/30

A. - 45

B. - 20

C. - 3.2

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Answers (1)
  1. 22 March, 19:43
    0
    B. - 20

    Step-by-step explanation:

    8/d = - 12/30

    We can use cross products to solve

    8 * 30 = d * - 12

    240 = - 12 d

    Divide each side by - 12

    240/-12 = - 12d/-12

    -20 = d
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