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23 February, 16:07

Which of the following equations is true?

A. 8.9 (50.9 - 18.7) = 59.8 - 27.6

B. 8.9 (50.9 - 18.7) = (8.9 x 50.9) - (8.9 x 18.7)

c.

8.9 (50.9 - 18.7) = 8.9 - 8.9 x 18.7

D.

8.9 (50.9 - 18.7) = (8.9 x 50.9) + (8.9 x 18.7)

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Answers (1)
  1. 23 February, 16:17
    0
    B. 8.9 (50.9 - 18.7) = (8.9 x 50.9) - (8.9 x 18.7)

    Step-by-step explanation:

    If you really don't recognize the pattern of the distributive property, your calculator can tell you if the left-side expression has the same value as the right-side expression.

    You are supposed to see the pattern ...

    a (b - c) = ab - ac

    where a=8.9, b=50.9, c=18.7. Choice B on this list is appropriate.

    8.9 (50.9 - 18.7) = 8.9*50.9 - 8.9*18.7
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