1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denis23 [38]
3 years ago
9

solve this system of linear equations. separate the x- and y- values with a comma. 6x +5y=-19 12x-8y=52

Mathematics
1 answer:
Ymorist [56]3 years ago
8 0

ANSWER

The solution is

(x,y)=(1,-5)

EXPLANATION

The equations are:

1st equation: 6x +5y=-19

2nd equation: 12x-8y=52

Multiply the first equation by 2:

3rd equation: 12x +10y=-38

Subtracy the 2nd equation from the 3rd equations.

12x-12x+10y--8y=-38-52

18y=-90

Divide both sides by 18.

y=-5

Put y=-5 into any of the equations and solve for x.

Preferably, the first equation will do.

6x +5(-5)=-19

6x -25=-19

6x=25-19

6x=6

x=1

The solution is

(x,y)=(1,-5)

You might be interested in
LAST ONE !! ILL MARK BRAINLEST AGAIN‍♀️ win win lol <br> Q: what is MAB?
AlexFokin [52]
The Correct Answer Is
144
4 0
3 years ago
The bread is on sale for $1.50 so Erica is also going to buy candy or gum. Which can she afford?
Alborosie
Ok, so she started off with $5.00. 


She bought milk for $2.99.

She buys bread, which costs $1.50. 

Subtracting the money she wasted, the total would be $0.51. 

The only thing she could buy is 5 pieces of gum for 25 cents. 

Her change will be $0.26. 

Hope this helps!
6 0
2 years ago
Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x2 + 1 into the quadratic
lidiya [134]

Answer: A

Step-by-step explanation:

The first thing we need to do is to make sure our equation is in standard form. The given equation is not in standard form.

3x²-2x=0

Now that the equation is in standard form, we can find our A, B, C to see which quadratic equation is correct.

A=3

B=-2

C=0

We can automatically eliminate D because the first value is -3 when it is supposed to be -(-2). Also, the denominator is supposed to be 2a. We know that A=3. The denominator should be 2(3), not 2(-2).

Next, we can eliminate B and C. For the 4ac, we know it has to be 4(3)(0) because A=3 and C=0. B and C have given 4(3)(2) and 4(3)(1), respectively. This does not match A=3 and C=0.

Therefore, A is the correct answer.

4 0
3 years ago
Sanjay begins to correctly graph the function f(x) = (x + 1)2 – 3. Based on the axis of symmetry and the vertex, which graph cou
Vilka [71]
Given the function f(x) = (x + 1)^2 - 3, we recognize that because of the x^2 factor we have a parabola that opens up.  Its vertex is (-1, -3), which I have swiped from the given equation.  The axis of symm is x= -1.
3 0
3 years ago
Read 2 more answers
Solve for x. <br> A) 11<br> B) 9<br> C) 6<br> D) 7
DIA [1.3K]

Answer:

Step-by-step explanation:

Angle  BCA is inscribed in that circle.  The rule is that the inscribed angle is half the measure of the arc it intercepts.  The arc it intercepts is arc AB which measures 96 degrees.  That means that

4x+4=\frac{1}{2}(96) and

4x + 4 = 48 and

4x = 44 so

x = 11

Choice A is the one you want.

8 0
3 years ago
Other questions:
  • The measure of an angle is 8 degrees less than three times the measure of another angle. If the two angles are supplementary, wh
    14·1 answer
  • Write a standard form equation...
    15·1 answer
  • Randy presses RAND on his calculator twice to obtain two random numbers between 0 and 1. Let $p$ be the probability that these t
    9·2 answers
  • Use the percent proportion to solve for X. 16 is 32% of x. Find the value of 1.​
    8·1 answer
  • Find the sum and choose the correct answer. 5n 3 + 4n 2 - 9 and -2n 3 + 7n - 5
    11·2 answers
  • Solve for r:<br> B=dPIEr^2
    11·1 answer
  • 4 m / h = cm min helppp​
    13·1 answer
  • What is 36t squared plus 4s squared
    5·1 answer
  • Divide 6/13 by 6/12 .<br> A. 12/13<br> B. 1/12<br> C. 9/16<br> D. 13/12
    13·1 answer
  • Fiction G is shown on the graph <br> Which function represents G
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!