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
const2013 [10]
3 years ago
6

I need help fast... if answered Correctly I will mark brainliest

Mathematics
1 answer:
Lesechka [4]3 years ago
5 0

9514 1404 393

Answer:

  (-5,1)

Step-by-step explanation:

To eliminate x, multiply the first equation by 3 and add 2 times the second equation.

  3(-2x +7y) +2(3x -4y) = 3(17) +2(-19)

  -6x +21y +6x -8y = 51 -38

  13y = 13

  y = 1 . . . . . matches the third answer choice

  (x, y) = (-5, 1)

You might be interested in
Solve the equation x2 – 12x =9
lord [1]

x = 3 \sqrt{5}  + 6 = 12.708203

3 0
3 years ago
How to solve a teo step inequality
prohojiy [21]

Answer:

Use the order of operations in reverse and remember that dividing or multiplying by a negative reverses the inequality

Explanation:

The order of operations is PEMDAS in reverse it is PESADM ( if you lose your cell phone in PE you are a SAD M(am)

Remember multiply or dividing by a negative reverses the value of the quality being divided or multiplied.

Just do the order of operations in reverse as in solving an equation always doing the opposite. Then remember to reverse the inequality sign whenever the inequality is multiplied or divided by a negative.

Step-by-step explanation:

8 0
3 years ago
sue buys a shirt at a 30% markup. It costs her 31.20 before tax. What was the price of the shirt before the markup?
IRINA_888 [86]

[Hello,BrainlyUser]

Answer:

$21.84

Step-by-step explanation:

.30

31.20 * .30=9.36

31.20 - 9.36 =21.84

The price of the shirt before the markup is $21.84.

[CloudBreeze]

6 0
2 years ago
Read 2 more answers
Solve the following system of equations algebraically<br> 3x-y=0<br> 5x+2y=22
Lyrx [107]

3x  -  y  = 0     ⇒   2(3x  -  y  = 0 )   ⇒   6x - 2y = 0

5x + 2y = 22  ⇒   1(5x + 2y = 22)   ⇒   <u>5x + 2y</u> = <u>22 </u>

                                                              11x         = 22

                                                                x          = 2

3x  -  y  = 0   ⇒   3(2) - y = 0   ⇒   6 - y = 0   ⇒   6 = y

Answer: x=2, y=6

3 0
4 years ago
Please help with this, I'm stuck.
photoshop1234 [79]

Answer:

18/5 = 3.6 (note that 3/2 = 1.5 )

the actual division is 3.387

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Which of these equivalent
    11·1 answer
  • The cost to buy one movie ticket is $7. If the total cost for the movie is a function of how many people go, then the input is?
    10·2 answers
  • Simplify : i attatched an image
    15·2 answers
  • Which type of data is best represented by a circle graph? A. changes in data over time B. data sets with some common elements C.
    6·2 answers
  • Is 1/3 more than 2/6
    8·2 answers
  • Consider the system of equations.
    10·1 answer
  • A water hose had filled up 1/9 of a pool after
    12·1 answer
  • I WILL GIVE YOU BRAINLIEST!!!!!
    5·1 answer
  • Find the missing length indicated. Plz
    15·1 answer
  • I do have examples to help me but they make no sense :/
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!