2

Mathematics

1 answer:

Over [174]2 years ago

4 0

Answer:

last one is the square matrix

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71% of 67 <br> how do i set it up

vodomira [7]

67 × .71
$61 \times .71$

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3 years ago

−7x−6y=2<br> 7x+4y=−6<br> solve for x and y

ikadub [295]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:x=-2,\:y=2}$

Step-by-step explanation:

$\begin{bmatrix}-7x-6y=2\\ 7x+4y=-6\end{bmatrix}$

$\mathrm{Substitute\:}x=-\frac{2+6y}{7}$

$\begin{bmatrix}7\left(-\frac{2+6y}{7}\right)+4y=-6\end{bmatrix}$

$\begin{bmatrix}-2-2y=-6\end{bmatrix}$

$\mathrm{For\:}x=-\frac{2+6y}{7}$

$\mathrm{Substitute\:}y=2$

$x=-\frac{2+6\cdot \:2}{7}\\\\x=-2$

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2 years ago

Solve by simplifying the problem. There are 18 students in Mr. Alvarez’s art class. Throughout the year, every student must pair

Alla [95]

We are given with an 18 student class that is working a project worked by pairs. Each pair works on a project. In this case, there are 9 teams of 2 individuals working on a single project. Hence for a year or school year, there are 9 projects accomplished each time.

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3 years ago

5/4,6/3,2/6 arrange these numbers in order of size.

Lapatulllka [165]

Answer:

6/3 is the biggest ofc =2

Then is 5/4 =1.25

Smallest is 2/6 = 1/3= 0.33

QwQ

Easy peasy

7 0

3 years ago