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taurus [48]
3 years ago
13

Which of the following is the solution to this system of equations? x-y=52x-3y=18​

Mathematics
1 answer:
notsponge [240]3 years ago
8 0

Answer:

answer:

(-3, -8)

Step-by-step explanation:

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3 years ago
Can anyone help with these? I appreciate and I will award 5 stars and brainliest
nekit [7.7K]

<u>Graph 1</u>

coordinates : (0,-5) (-6,-2)

m = (y2-y1)/(x2-x1)

m = (-2-(-5))/(-6-0)

m = 3/-6 = -1/2

Substitute the values,

y = mx + c

-2 = (-1/2)(-6) + c

-2 = 3 + c

c = -5

Thus, equation is y = -1/2x -5

<u>Graph </u><u>2</u>

coordinates : ( 4,-2) (-5,3)

m = (y2-y1)/(x2-x1)

m = (3-(-2))/(-5-4)

m = 5/-9

Substitute the values,

y = mx + c

-2 = (-5/9)(4) + c

-2 = -20/9 + c

c = 2/9

Thus, the equation is y = -5/9 + (2/9)

Hope it helps :)

8 0
4 years ago
Find the perimeter of a rectangle with a length of 6x+3 and a width of -2x-5.
blsea [12.9K]
The simple way of calculating a perimeter is to add all of the sides.
For a rectangle this would equal 2 x length + 2 x width
P = 2(6x + 3) + 2(-2x - 5)
= 12x + 6 - 4x - 10
= 8x - 4

At a higher level both the length and width must be greater than zero (= zero is a trivial rectangle)
6x + 3 > 0
6x > -3
x > -0.5

-2x - 5 > 0
2x + 5 < 0 (multiplying by -1 reverses the inequality)
2x < -5
x < -2.5

This rectangle cannot exist as x cannot be < -2.5 and > -0.5 at the same time!
8 0
3 years ago
Read 2 more answers
Solve the system using substitution <br> x+y=8 <br> y=3x
Eddi Din [679]
X+3x=8
x=8-3x is how far i could simplify
3 0
3 years ago
Read 2 more answers
6 veces un numero elevado al cuadrado.
Lunna [17]

Answer:

Six squared=36

Step-by-step explanation:

Well, we know squared means 2

So...Think.

Six is not times 2. You might think that, but...

...It's actually multiplying 6 two times

6x6 is 36

You also can think of it as

6x(6 two times)

or 6x(3x2)

Did I answer your question?

Get back to me if I didn't, and I'll help!

4 0
3 years ago
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