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
Effectus [21]
3 years ago
15

Apply the elimination method to solve the system of equations 2x+6y=8 and 3x+2y=2 which three statements are correct

Mathematics
1 answer:
omeli [17]3 years ago
6 0

Answer: x= -2/7, y = 10/7

Step-by-step explanation: 1) 2x +6y = 8 and 2) 3x + 2y = 2

Multiply equation 2) by -3 and you get -9x -6y = -6.

Add together and sum is -7x = 2 and x= -2/7 then insert to eat, 2) value of x:

3·(-2/7) +2y = 2 and 2y = 2+ 6/7 2y = 20/7 and y = 10/7

You might be interested in
The amount c in grams of a 100 gram sample of carbon-14 remaining after t years is represented by the equation c= 100 (0.99988)t
tigry1 [53]

Answer: The amount of carbon-14 remaining after 4 years is 99.95 grams.

Step-by-step explanation:

Hi, to answer this question we simply have to substitute t=4 in the equation given and solve for c.

c= 100 (0.99988)^t

c =100 (0.99988)^4

c = 100 x 0.999520086

c= 99.95200864 ≅99.95 grams (rounded)

The amount of carbon-14 remaining after 4 years is 99.95 grams.

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
The difference of sample means of two populations is 108.7, and the standard deviation of the difference in sample means is 32.
charle [14.2K]

Answer: A. The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be rejected.

Step-by-step explanation:

I just got it right on PLATO, so I know it’s 100% correct.

5 0
3 years ago
7x2+3[81-(4x6)]<br> Simplify
4vir4ik [10]
P E M D A S

Pren
Equ
Multiply
Divide
Add 
Subtract
5 0
3 years ago
Read 2 more answers
6,528 divided by 8 and also 6,349 divided by 9
mote1985 [20]

Answer:

6,528 divided by 8 is 816

6528/8 = 816

6348 divide by 9 is 705.44..... ♾️

7 0
3 years ago
Can someone help lol
djverab [1.8K]

Answer:

p=30 q=150

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Staples recently charged $3.79 per ream (package of 500 sheets) of regular paper and $5.49 per ream of paper made of recycled fi
    8·1 answer
  • What the perimeter of this
    12·1 answer
  • 15 &lt; −5x can someone please solve for x?
    7·2 answers
  • What is the product 4 times 1000​
    6·2 answers
  • How do you write 1 3/4 as a decimal show your work!
    6·1 answer
  • 2d-5=17 what does d equal
    9·1 answer
  • Open a bank account make a deposit $150
    10·1 answer
  • How many solutions does this equation have?<br><br> 16 − 12h = 4(–3h + 4)
    8·1 answer
  • Evaluate the expression shown below and write your answer as a fraction in simplest form 3/20 + 7/16 ​
    13·1 answer
  • #17. Use the number line below to model 6: 3/4.#18. What is the quotient 6: 3/4?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!