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masha68 [24]
3 years ago
14

Clark used the order of operations to find the unknown number in 15-12÷3=n what is the value of the unknown number?

Mathematics
2 answers:
geniusboy [140]3 years ago
8 0
The order of operations is PEMDAS. The order we perform operations is parentheses (P), exponents (E), multiplication (M), division (D), addition (A), subtraction (S). We have two operations to do, division is done before subtraction.

15 - 12 ÷ 3= n
15 - 4= n
11=n

ANSWER: n= 11

Hope this helps! :)

lukranit [14]3 years ago
5 0
The order of operations is:

Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction

So division comes first:

\sf 15-12\div 3=n

\sf 15-4=n

Now subtraction:

\boxed{\sf n=11}
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Need help please:<br><br><br>-2 -5/4 x = 13<br><br>what does X mean?​
Gnom [1K]

Answer:x=-12

Step-by-step explanation:

−2−

5

4

x=13

−2+

−5

4

x=13

−5

4

x−2=13

Step 2: Add 2 to both sides.

−5

4

x−2+2=13+2

−5

4

x=15

Step 3: Multiply both sides by 4/(-5).

(

4

−5

)*(

−5

4

x)=(

4

−5

)*(15)

x=−12

Answer:

x=−12

But X is the variable your solving for

 

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Svetlanka [38]

Answer:

A

Step-by-step explanation:

answer B would give you an answer of 23.5... not 23 (bc 47/2 is not 23)

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