2 years ago

How do i do xy=4 2x-y+2=0 i'm solving by substition

Mathematics

2 answers:

GarryVolchara [31]2 years ago

4 0

so I think the answer is very difficult ask to someone else

Step-by-step explanation:

xy=4

2x-y+2=0

igomit [66]2 years ago

4 0

Is it x+y=4 or x-y=4? I can help you solve in comments.

You might be interested in

If 1/2x = a= 2/3y and x + y= na, what is the value of n?

Fynjy0 [20]

Answer:

Step-by-step explanation:

$\frac{1}{2} x=a=\frac{2}{3} y\\\frac{1}{2}x=a\\x=2a \\\frac{2}{3} y=a\\y=\frac{3}{2} a\\x+y=2a+\frac{3}{2} a=\frac{4a+3a}{2} =\frac{7}{2} a=na\\n=\frac{7}{2}$

4 0

2 years ago

The lengths of the sides of a triangle are in the extended ratio 7: 9 : 10. The perimeter of the triangle is 52 cm. What are t

Pavel [41]

Answer:

14 cm, 18 cm, 20 cm

Step-by-step explanation:

7x + 9x + 10x = 26x

equation: 26x = 52

divide each side by 26: x = 2

7 * 2 = 14

9 * 2 = 18

10 * 2 = 20

check if answer is right: 14 + 20 + 18 = 52

I hope this helped, please mark Brainliest thank you so much!!

8 0

2 years ago

Identify the constant of proportionality

MissTica

The answer is #2. 3/2. The dot rises 3 lines and moves to the right 2 lines.

7 0

2 years ago

What does X equal?? Please help me out!!

Alja [10]

X = 80 + 20 = 100 degrees

3 0

3 years ago

Factor out the greatest common factor<br> 20x^4 + 15x^2 - 10x

aleksandr82 [10.1K]

5x(4x^3 + 3x - 2)

There’s a 5 and a x common.

3 0

2 years ago