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4 years ago

Which ordered pair is a solution to the system of equations?

Mathematics

1 answer:

MaRussiya [10]4 years ago

4 0

Answer:

D is the correct answer

Step-by-step explanation:

Since 5x and 4x+1 are both equal to y, we can set them equal to each other as shown below:

5x=4x+1

x=1

Plugging x=1 into y=5x gets us y=5(1)=5

So x=1 and y=5, which is also (1,5)

Hope this helped!

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Glen Cove has a population of 7,200, which is decreasing at a

slamgirl [31]

Answer:

11 years

Step-by-step explanation:

7200 - 80x = 5000 + 120x
-5000 + 80x -5000 + 80x
2200 = 200x
11 = x

4 0

2 years ago

What is the set of all solutions to the equation \sqrt{x + 2}= {-x} x+2 =−xsquare root of, x, plus, 2, end square root, equals

NARA [144]

Answer:

$x = 2$ or $x = -1$

Step-by-step explanation:

Given

$\sqrt{x + 2}= {-x}$

Required

Find the possible values fo x

$\sqrt{x + 2}= {-x}$

Square both sides

$( \sqrt{x + 2})^2= ({-x})^2$

$x + 2 = x^2$

Equate to 0

$x^2 - x - 2 = 0$

Expand

$x^2 + x -2x - 2 = 0$

Factorize:

$x(x + 1) - 2(x + 1) = 0$

$(x -2)(x +1) = 0$

Split:

$x - 2 = 0$ or $x + 1 = 0$

$x = 2 + 0$ or $x = 0-1$

$x = 2$ or $x = -1$

3 0

3 years ago

X+3/2 - X-2/2 = 1 Hence find p, if 1/X + p = 1

jek_recluse [69]

Answer:

pie =1 so hence find p x+3+2 -X-22+1 =1

Step-by-step explanation:

3 0

3 years ago

Jasmine evaluated the expression 3x+2 when x=5.

Inessa05 [86]

Answer:

when x = 5

then the value of. (3x+2)

(3*5) + 2

 

15 + 2

=. 17

her mistake was that she doesn't multiplied 5 and 3 

6 0

3 years ago

Mrs. Salome charged php. 3,655.00 worth of groceries on her credit card. The balance of her credit card after she made a payment

e-lub [12.9K]

I don’t know what the question is? If you’re looking for the amount she paid, the answer is Php 1,205.00.

Php 3,655.00
- 2,450.00
—————————
Php 1, 205.00

7 0

3 years ago