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My name is Ann [436]
3 years ago
15

Solve the system of equations. 2.5y + 3x = 27 5x – 2.5y = 5 What equation is the result of adding the two equations?What equatio

n is the result of adding the two equations?
Mathematics
2 answers:
Nina [5.8K]3 years ago
3 0
A) <span>3x  + </span><span>2.5y= 27
B) 5x – 2.5y = 5
</span>Adding A and B we get
8x = 32
x = 4
A) 3*4  + <span>2.5y= 27
</span>A) 12  + <span>2.5y= 27
</span>A) <span>2.5y= 15
y = 6

</span>
Naddika [18.5K]3 years ago
3 0

Answer:

A.8x=32  B.(4,6)

Step-by-step explanation:

................ these are edunuity answers


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Hey!

We can use long division to solve this,
Let's write it.
6\overline{|\smallspace22}\space\space\space\space
Then, divide 22 by 6 to get 3.
\begin{matrix}\space\space\space\space\space\space\emptyspace3\space\space\space\space\space\space\space\space\space\space\space\space\\ 6\overline{|\smallspace22}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}
Multiply the quotient by the divisor...
\begin{matrix}\space\space\space\space\space\space\emptyspace3\space\space\space\space\space\space\space\space\space\space\space\space\\ 6\overline{|\smallspace22}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace1\emptyspace8}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}
Subtract 18 from 22.
\begin{matrix}\space\space\space\space\space\space\emptyspace3\space\space\space\space\space\space\space\space\space\space\space\space\\ 6\overline{|\smallspace22}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace1\emptyspace8}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\space\space\emptyspace4\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}
As you can see, our answer using long division would be 3 with a remainder of 4. 

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