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g100num [7]
3 years ago
10

What can you simplify 12+3(18-42)+9

Mathematics
2 answers:
rodikova [14]3 years ago
5 0

Answer:

-51

Step-by-step explanation:

<u>Step 1:  Solve inside the parenthesis</u>

12 + 3(18 - 42) + 9

<em>12 + 3(-24) + 9</em>

<em />

<u>Step 2:  Multiply</u>

12 + 3(-24) + 9

<em>12 - 72 + 9</em>

<em />

<u>Step 3:  Combine the first two numbers</u>

(12 - 72) + 9

<em>-60 + 9</em>

<em />

<u>Step 4:  Combine the last two numbers</u>

-60 + 9

<em>-51</em>

<em />

Answer:  -51

Mashcka [7]3 years ago
3 0

Answer:

-351

Step-by-step explanation:

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A rectangle measures 4 1/2 inches by 2 3/4 inches what is its area?
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Answer:

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2x + 7 = 27 or 3 + 3x = 30
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Step-by-step explanation:

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2 years ago
Sq is an angle bisector m &lt;qst=2x and m &lt;qsr=3x-10 what is &lt;rst
defon
Answer:
∠RST = 40°

Explanation:
We are given that:
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This means that:
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Note that both angles are equal.

Now, we can get ∠RST as follows:
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