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
wlad13 [49]
2 years ago
13

Solve each system by elimination. -9x + 4y = 7 -2x-4y=-18

Mathematics
2 answers:
goldenfox [79]2 years ago
7 0

Answer:

X=1

Step-by-step explanation:

-9x + 4y = 7

-2x-4y=-18

Since the variables are opposites add -9x+-2x

and you get -11x 4y + -4y = 0 and -18 +7=11

-11x=-11 divide that by 11 and get 1

IrinaK [193]2 years ago
4 0

Answer:

(1, 4 )

Step-by-step explanation:

- 9x + 4y = 7 → (1)

- 2x - 4y = - 18 → 2)

add (1) and (2) term by term to eliminate y

- 11x + 0 = - 11

- 11x = - 11 ( divide both sides by - 11 )

x = 1

substitute x = 1 into either of the 2 equations and solve for y

substituting into (1)

- 9(1) + 4y = 7

- 9 + 4y = 7 ( add 9 to both sides )

4y = 16 ( divide both sides by 4 )

y = 4

solution is (1, 4 )

You might be interested in
Amir says the graph of<br> y= x2 + 16 has -4 as a zero. Is Amir correct?<br> Explain.
sukhopar [10]

Answer:

  • Amir is wrong

Step-by-step explanation:

The function y = x² + 16 is positive for any value of x, hence the graph has no intersection with the x-axis and therefore has no real zero's.

If no zero's, -4 also can't be its zero.

8 0
2 years ago
Read 2 more answers
Find the area of the figure.<br><br> Whoever answers within an hour get brainliest
Gemiola [76]

Answer:

48 ft^2

Step-by-step explanation:

The width and height of this parallogram are given:  6 ft and 8 ft.

The area of a parallelogram of width w and height h is A = wh.

Thus, the area of this particular parallelogram is

A = (6 ft)(8 ft) = 48 ft^2

8 0
3 years ago
WILL GIVE A BRAINLEST
andreyandreev [35.5K]
Two end points
One direction

Hope this helps xx
5 0
3 years ago
I need help ! ASAP !
svetoff [14.1K]

Answer:

288

Step-by-step explanation:

There are 8 fluid ounces in a cup so that would equate to

8 x 36 = 288

288 fluid ounces a minute

7 0
2 years ago
Judson collected information about the name length and the population of a random sample of 296 American cities. Here are the re
Natasha2012 [34]
It would be 90 - 10
6 0
3 years ago
Other questions:
  • 1.Explain how to find equivalent fractions for 9/12<br> 2.Explain how to simplify 16/24
    8·1 answer
  • Between which two consecutive integers does the square root of 53 lie
    13·2 answers
  • I need help with a question! Thank you!
    15·2 answers
  • Solve for x. <br><br> -5x = -10
    14·1 answer
  • Solve x2 + 6x = 7 by completing the square. Which is the solution set of the equation?
    12·1 answer
  • GUYS PLS HELP ME<br><br> ITZ MY LAST ASSIGNMENT I NEED AND I DONT KNOW HOW TO DO ITTTT
    5·2 answers
  • 6log6(36)<br> simplify with logarithmic properties
    15·1 answer
  • The volume of a rectangular prism is the products it’s dimensions. If the dimensions of a rectangle prism are approximately 1.08
    13·1 answer
  • Tell whether the line or segment is the best described as a chord,a diameterdiameter,or a raduis of a circle
    8·1 answer
  • Solve for d. 2(d − 10) = 18 d =
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!