2 years ago

-90 divided by -31 help

Mathematics

2 answers:

Nikolay [14]2 years ago

5 0

The answer is 2.90322581

Andrej [43]2 years ago

5 0

Answer:

2.903225

Step-by-step explanation:

if you divide 2negativezs, you get a positive. -90/-31 =2.903225

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Find the solution set of the following equations: <br><br>2y=2x+7<br><br>X=y+2

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Answer:

The system of equations has no solution.

Step-by-step explanation:

Given the system of equations

2y = 2x+7

x = y+2

solving the system of equations

$\begin{bmatrix}2y=2x+7\\ x=y+2\end{bmatrix}$

Arrange equation variables for elimination

$\begin{bmatrix}2y-2x=7\\ -y+x=2\end{bmatrix}$

Multiply -y+x=2 by 2: -2y+2x=4

$\begin{bmatrix}2y-2x=7\\ -2y+2x=4\end{bmatrix}$

so adding

$-2y+2x=4$

$+$

$\underline{2y-2x=7}$

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so the system of equations becomes

$\begin{bmatrix}2y-2x=7\\ 0=11\end{bmatrix}$

0 = 11 is false, therefore the system of equations has no solution.

Thus,

No Solution!

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-90 divided by -31 help​

-90 divided by -31 help