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
JulijaS [17]
3 years ago
9

Solve using elimination. - 8x + 2y = -20 8x - 5y = 14

Mathematics
1 answer:
Anna [14]3 years ago
5 0

Answer:

<em>x = 3, y = 2</em>

Step-by-step explanation:

~ Through process of elimination ~

1.         - 8x + 2y = -20      

        +   8x - 5y = 14

2. Simplify to solve for y through simple algebra:

          2y - 5y = -20 + 14 ⇒ - 3y = - 6 ⇒<em> y = 2</em>

3. Now substitute this value of y into the to equation - 8x + 2y = -20 to get x:

- 8x + 2 ( 2 ) = -20  ⇒

    -8x + 4 = -20 ⇒

       -8x = -24 ⇒

           <em>x = 3</em>

You might be interested in
Please help me! will mark brainliest
Alik [6]

k = -2

√-72k = √(-72 · (-2)) = √144 = √12² = 12

7 0
3 years ago
Use repeated subtraction to divide 86 divided by 9
Fudgin [204]

-- Start with 86.

-- Subtract 9 the first time.        You have  77 left.

-- Subtract 9 the 2nd time.        You have  68 left.

-- Subtract 9 the 3rd time.        You have  59 left.

-- Subtract 9 the 4th time.        You have  50 left.

-- Subtract 9 the 5th time.        You have  41 left.

-- Subtract 9 the 6th time.        You have  32 left.

-- Subtract 9 the 7th time.        You have  23 left.

-- Subtract 9 the 8th time.        You have  14 left.

-- Subtract 9 the 9th time.        You only have 5 left, so you can't subtract 9 again.

                                                 You subtracted it 9 times, and you have 5 left.

                                                 So  86  divided by 9 is  (9 with remainder 5) .

3 0
4 years ago
What is 10/8 written as a decimal?
ale4655 [162]

Answer:

1.25

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Identify the parameters p and n in the following binomial distribution scenario. The probability of winning an arcade game is 0.
Paraphin [41]

Answer:

p = 0.718 and n = 20

Step-by-step explanation:

p is the probability of success and n is the number of trials.

Here, p = 0.718 and n = 20.

7 0
4 years ago
Read 2 more answers
suppose that x and y vary inversely and x=1 when y=12. write a function that models the inverse variation. graph the function an
larisa [96]

Answer:

y=12/x

Step-by-step explanation:

if y=12, and x=1 so

general formula y=12/x

for x=5 , y=12/5=2.4

you can graph by ploting points such as (1,12), (5, 2.4),...

6 0
3 years ago
Other questions:
  • on a floor plan, a room measures 2 inches by 5 inches. if the scale is 1 inch = 4 feet, what is the actual size of the room?
    14·1 answer
  • Determine the number of solutions of the linear system: 14x + 7y = 315 16x - 2y = 610
    13·1 answer
  • What's the answer to the problem
    6·2 answers
  • I need help please and thank you
    11·1 answer
  • Edina took advantage of a special offer that allowed her to rent a car for 4 days for a total of $144. If she had not taken the
    14·2 answers
  • On sunday, alanna made soup. she used 1.9 liters of chicken broth and 2.4 liters of vegetable broth. she says that she used abou
    15·2 answers
  • PLEASE HELP QUICK ITS TIMED
    14·1 answer
  • Solve for y.<br><br> pls help
    7·1 answer
  • Piete)
    10·1 answer
  • Seven times a number is between – 28 and 28.​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!