All categories

4 years ago

Solve the system of equations.- 9x + 4y = 69x + 5y = -33

Mathematics

1 answer:

liubo4ka [24]4 years ago

7 0

Let us solve this system of equations by using the elimination method. Adding the 2 equations, we get

9x + 5y - 9x + 4y = -33 + 6

9y = -27

y = -3

Substituting this value of y in the first equation, we get

-9x + 4(-3) = 6

-9x - 12 = 6

9x + 12 = -6

9x = -18

x = -2

Therefore, x = -2, and y = -3. Hope this helps! If you have any questions, feel free to ask.

You might be interested in

Which inequality does this graph represent?

lana [24]

Answer:

if the line counts then d if it doesnt then b

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the distance between (-7, -2) and (13,-23)

Zolol [24]

Step-by-step explanation:

here,

x1=-7

x2=13

y1=-2

y2=-23

$\boxed{\blue{ distance=\sqrt{(y2-y1)^2+(x2-x2)^2} }}$ ⠀

<em>=</em> $\tt{\sqrt{(-23-(-2))^2+(13-(-7))^2}}$ ⠀

= $\tt{\sqrt{(-21)^2+(20)^2} }$ ⠀

= $\tt{\sqrt{ 441+400} }$ ⠀

= $\tt{\sqrt{841} }$ ⠀

= $\tt{ 29 }$ ⠀

So,

the distance between (-7, -2) and (13,-23)=29

6 0

3 years ago

Graph the linear equation. find three points that solve the equation x+y=-2

vagabundo [1.1K]

Answer:

See the graph of the given linear equation shown below.

Explanation:

Given the linear equation : x+y = -2

We make a table for values of x and y;

x y = -2-x

0 -2

-2 0

1 -3

Now, plot these three points (0, -2) , (-2, 0) and (1, -3) on the coordinate plane.

You can see the graph as shown below.

6 0

3 years ago

(08.05)The box plot shows the number of years during which 24 colleges have participated in a local college fair:

nasty-shy [4]

Where is the plot (Unnecessary Stuff)

4 0

3 years ago

Read 2 more answers

line passes through the point (-3,-4) and its y-intercept is (o, -9). What is the equation of the line that is parallel to the f

12345 [234]

Answer:

$y=-\frac{5}{3}x-2$

Step-by-step explanation:

The first line has a slope of -5/3 found using the points in the slope formula.

$m=\frac{y_2-y_1}{x_2-x_1} =\frac{-9--4}{0--3}=\frac{-9+4}{0+3}=\frac{-5}{3}$

Parallel lines have the same slope. So -5/3 is the slope of the second line. Write its equation using the point slope form $y-y_1=m(x-x_1)$ .

$y--7=-\frac{5}{3}(x-3)\\y+7 = -\frac{5}{3}(x-3)\\y=-\frac{5}{3}x + 5 -7\\y=-\frac{5}{3}x-2$

7 0

3 years ago

Solve the system of equations.- 9x + 4y = 69x + 5y = -33​

Solve the system of equations.- 9x + 4y = 69x + 5y = -33