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28 March, 20:15

8. Which expression is equivalent

to 24 + 15?

A 2 X (12 + 7)

B 3 X (8 + 5)

C 5 x (8 + 3)

D 8 X (3 + 7)

+4
Answers (2)
  1. 28 March, 20:21
    0
    B

    This is an expand the brackets question. So you multiply the number on the outside of the bracket by the numbers on the inside of the bracket.

    3*8=24

    3*5=15
  2. 28 March, 20:27
    0
    B

    Step-by-step explanation:

    Given

    24 + 15 ← factor out 3 from each term

    = 3 (8 + 5)

    As a check

    24 + 15 = 39 and

    3 (8 + 5) = 3 * 13 = 39

    Hence 24 + 15 = 3 (8 + 5) → B
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