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EmmaKozlewski4907
21.07.2019 •
Mathematics
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)
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Ответ:
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
Ответ: