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Serggg [28]
3 years ago
12

If you were to solve the following system by substitution, what would be the best variable to folve for and from what equation?

Mathematics
2 answers:
prisoha [69]3 years ago
5 0

Answer:

X in the first equation

Step-by-step explanation:

weeeeeb [17]3 years ago
3 0

Answer:

D

Step-by-step explanation:

It's easiest to divide everything by 3.

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On January 15, the end of the first pay period of the year North company employees earned 26,000 of sales salaries.
cluponka [151]

Step-by-step explanation:

Is this meant to be a question?

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2 years ago
Its the 1000 one anyone can help plzzzz
Over [174]
If you mean 1 and 7 over 100 then the answer is 1.07
4 0
3 years ago
Please help me ASAP!!!​
Verizon [17]
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5 0
3 years ago
Use the matrix tool to solve the system of equations. Choose the correct ordered pair.3x + 5y = 42 6x + 5y = 54
kobusy [5.1K]
Solutions  

In Matrix we use initially based on systems of linear equations.The matrix method is similar to the method of Elimination as but is a lot cleaner than the elimination method.Solving systems of equations by Matrix Method involves expressing the system of equations in form of a matrix and then reducing that matrix into what is known as Row Echelon Form.<span> 

Calculations 

</span>⇒ <span>Rewrite the linear equations above as a matrix 
</span>
\left[\begin{array}{ccc}3&5&42\\6&5&54\\\end{array}\right] 

⇒  Apply to Row₂ : Row₂ - 2 <span>Row₁ 
</span>
\left[\begin{array}{ccc}3&5&42\\0&-5&-30\\\end{array}\right] 

⇒ <span>Simplify rows
</span>
\left[\begin{array}{ccc}3&5&42\\0&1&6\\\end{array}\right] 

Note: The matrix is now in echelon form.
<span>The steps below are for back substitution. 
</span>
⇒ Apply to Row₁<span> : Row</span>₁<span> - </span>5 Row₂ 

\left[\begin{array}{ccc}3&0&12\\0&1&6\\\end{array}\right] 

⇒ <span>Simplify rows 
</span>
\left[\begin{array}{ccc}1&0&4\\0&1&6\\\end{array}\right] 

⇒ <span>Therefore, 
</span>
x=4&#10;&#10;y = 6
<span> 

 
</span>

5 0
3 years ago
Find the value of (-64)2/3
Marizza181 [45]

Answer:

-42.66666...

Step-by-step explanation:

-64 * 2/3 is -42.66666...

well, according to the calculator.

7 0
3 years ago
Read 2 more answers
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