lanipooh01
30.01.2020 •
Mathematics
What is another way to write the calculation add 9 and 4, and then multiply by 3? a) (3)(9)+4 b) 3(9+4) c) 3x4+9 d) 3x9+4
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Ответ:
B) 3(9+4)
Step-by-step explanation:
B is the correct answer because of the PEMDAS rule telling in what order to solve an expression with more than one operation. (parenthesis, exponents, multiplication, division, addition, subtraction). Therefore, with parentheses coming before multiplication in the PEMDAS rule it would be adding 9+4 and then mulriplying it by three.
Ответ: