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Artemon [7]
3 years ago
6

Answers plz I need help really badly

Mathematics
2 answers:
sattari [20]3 years ago
8 0
8. 55/12 and 9 is 7
have a good day
topjm [15]3 years ago
8 0
Number 8 is 4.5833 I double checked
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The sum of two numbers is 126 and their difference is 42. what are two numbers
Snowcat [4.5K]

Answer:

<h2>84, 42</h2>

Step-by-step explanation:

x,\ y-numbers\\\\\text{The system of equations:}\\\\\underline{+\left\{\begin{array}{ccc}x+y=126\\x-y=42\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad2x=168\qquad\text{divide both sides by 2}\\.\qquad x=84\\\\\\\text{Put the value of}\ x\ \text{to the first equation:}\\\\84+y=126\qquad\text{subtract 84 from both sides}\\y=42

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Answer: Screams internally

Step-by-step explanation:

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3 years ago
If k = 13, what is the value of the expression 4k?
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