1

Mathematics

1 answer:

anzhelika [568]3 years ago

4 0

9514 1404 393

Answer:

D None

Step-by-step explanation:

The steepest line shown is line A, which has a rise/run = 5/2. It is not a slope of 4.

No line shown has a slope of 4.

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Systems Of Elimination(PLZ HELP BEST ANSWER=Brainliest) x+2y=2 -x+3y=13

joja [24]

x + 2y = 2
-x + 3y = 13

As the x-terms of these equations are already opposites, you can begin to solve by elimination by adding the equations together.

 x + 2y = 2
-x + 3y = 13
+___________
0 + 5y = 15
y = 3

Now that you have y, substitute its value, 3, into either equation to find x.

x + 2y = 2
x + 2(3) = 2
x + 6 = 2
x = -4

Lastly, check all work by substituting both x- and y-values into both original equations.

x + 2y = 2
-4 + 2(3) = 2
-4 + 6 = 2
2 = 2

-x + 3y = 13
-(-4) + 3(3) = 13
4 + 3(3) = 13
4 + 9 = 13
13 = 13

Answer:
x = -4
y = 3

(-4, 3)

6 0

3 years ago

Read 2 more answers

What is the expressions that equal 372,000

sveta [45]

Answer:

Look below

Step-by-step explanation:

372,000 = 372,000

372,000 = 300,000 + 70,000 + 2,000

Hopefully this helps you

pls mark brainlest

4 0

3 years ago

3x - 4y = 7 , for x 15y + 1 = x , for y

Ipatiy [6.2K]

3x - 4y = 7 ; Solve for x

We're essentially just trying to get "x" onto it's own side.

So, in order to do this, we must get "y" onto the other side of our equal sign.

Add 4y to both sides.

3x = 4y + 7

Then, we divide 3 from both sides.

x = 4/3y + 7/3

15y + 1 = x ; Solve for y.

Instead of solving for x, we are now solving for y :)

So, in order to isolate y, we must subtract 1 from both sides.

15y = x - 1

Then, divide both sides by 15.

y = 1/15x - 1/15

~Hope I helped!~

4 0

3 years ago

Which expression is equivalent to (-4y-x)-(y-9x) ?

777dan777 [17]

Answer:

-5y + 8x

Step-by-step explanation:

$(-4y-x)-(y-9x)\\\\-4y-x-(y-9x)\\\\\rightarrow-(y-9x)*-1=-y+9x\\\\-4y-x-y+9x\\\\-4y-y+9x-x\\\\\boxed{-5y+8x}$