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
N76 [4]
3 years ago
14

Solve the system using elimination. x − 4y = 4 and -3x − 4y = 12

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
6 0

  x - 4y = 4

-3x - 4y = 12

Subtract the first equation from the second

  x - 4y = 4

-4x      = 12

Divide the second equation by (-4)

  x - 4y = 4

  x      =  -3

Subtract the second equation from the first

   - 4y  =  7

  x      =  -3          

Divide the first equation by (-4)    

       y  =  -7/4

  x      =  -3        

<h3>So, the solution is  x = -3  and  y = - 7/4</h3>

You might be interested in
Julie’s mom paid $2.70 for 5 pounds of bananas at Supermart. Mario’s mom paid $2.60 for 4 pounds of Bananas at Market One. Write
serg [7]

Answer: (Supermart) Equation 1 = $2.70÷5 lb = $0.54 per lb

(Market One) Equation 2 = $2.60÷4 lb = $0.65 per lb

Since the unit price of bananas per lb in Supermart is less than the unit price of bananas per lb in Market One, Supermart has the better price.

7 0
2 years ago
Read 2 more answers
What is 5713 – 75 =<br> show your workings out
gavmur [86]

Answer:

5713 - 75

= 5638

Step-by-step explanation:

brainliest plz

7 0
3 years ago
Read 2 more answers
HELP AND PLS EXPLAIN AND ILL MARK BRAINLIEST PLSS I'M CONFUSED AND NEED HELP FAST ​
Alex787 [66]

Answer:

Okay so what you do is multiply 6*9*4.5 together and that'll give you 243 as the volume of the prism. I'm not sure what it is in decimal. I'm guessing 24.3

I'm so sorry if this is incorrect.

Have a great day! <3

8 0
3 years ago
Read 2 more answers
The graph of y=-2x + 11 is:
Dominik [7]

Answer:

D

Step-by-step explanation:

when plotting coordinate in the equation the points will show the line for the graph

5 0
3 years ago
Read 2 more answers
The pitney pipe company is one of several large domestic manufacturers of pvc pipe. the quality control department sampled 600 1
shepuryov [24]

Answer:

13.8–14.2 inches

Step-by-step explanation:

If you assume the "symmetrical and bell-shaped" distribution is a normal distribution, then 95% of observations will lie within 2 standard deviations of the mean:

... 14 in ±2×(0.1 in) = 13.8 in to 14.2 in


6 0
3 years ago
Other questions:
  • What is the smallest solution to the equation 3x<img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20" id="TexFormula1" title=" x^
    14·1 answer
  • What digit is in the millions place in 808,715,710
    13·1 answer
  • ANSWER THE QUESTION IN THE PIC. WILL GIVE BRAINLIEST!
    10·2 answers
  • Which order pair is a solution to the system of linear equations -4+y=8 and x-5y=17?
    14·2 answers
  • How do you solve this?
    7·1 answer
  • write the equation of a line that is parallel to y= 1/2x -4 and that passes through the point (9, -6)​
    15·1 answer
  • Identify the domain of the function shown in the graph.
    7·1 answer
  • In the figure angle B= angle D. AB=40, AC=35, BC=25, CE=28. Find ED to the nearest whole number. ( see image )
    14·1 answer
  • each week, Jennifer saves 1/5 of her allowance and spends some of the rest on lunches. this week, she had 2/15 of her allowance
    9·1 answer
  • What is the answer to: 1a to the power of 349 b to the power of 28 c to the power of 2 d to the power of 82 e to the power of 48
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!