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
Irina18 [472]
3 years ago
10

Solve the system using elimination. 2x – 2y = –8 x + 2y = –1 pls help me -w-

Mathematics
2 answers:
padilas [110]3 years ago
7 0

Answer:

(- 3, 1 )

Step-by-step explanation:

Given the 2 equations

2x - 2y = - 8 → (1)

x + 2y = - 1 → (2)

Adding the 2 equations will eliminate the y- term, that is

3x = - 9 ( divide both sides by 3 )

x = - 3

Substitute x = - 3 into either of the 2 equations and evaluate for y

Substituting into (2)

- 3 + 2y = - 1 ( add 3 to both sides )

2y = 2 ( divide both sides by 2 )

y = 1

Solution is (- 3, 1 )

Evgesh-ka [11]3 years ago
6 0

Answer:

-3,1

Step-by-step explanation:

You might be interested in
I WILL MARK BRAINIEST <br> PLEASE ANSWER QUESTION 26
Oksana_A [137]

Answer: (0,-10) and the transformation should be a reflection

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The people of Whoville were shopping like crazy to get their lists completed! one customer bought a wreath for $12 and seven orn
Bezzdna [24]

Answer: 6 dollars

Step-by-step explanation: since the total price is 54 dollars and we know the price of the wreath, we subtract the wreath from the total, leaving us with 42. Then we do 42 divided by 7 to get the price per ornament(which is too high to be reasonable in any universe), 6 dollars.

3 0
3 years ago
Read 2 more answers
Can someone solve these for me
tatuchka [14]

Answer:

0.66 and 33/50

62.5% and 5/8

0.75 and 3/4

120% and 1 1/5

0.005 and 1/200

3.75 and 375%

I hope that is correct and helps you! :)

Step-by-step explanation:

8 0
3 years ago
Reuben bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He p
cupoosta [38]
Same case as Pablo's, more or less.

a = price for the desktop

b = price for the laptop

we know the laptop is 150 bucks more than the desktop,  b = a + 150.

how much is 7% of a?  (7/100) * a, 0.07a.

how much is 9.5% of b?  (9.5/100) * b, 0.095b.

total interests for the financing add up to 303, 0.07a + 0.095b = 303.

\bf \begin{cases}&#10;\boxed{b}=a+150\\&#10;0.07a+0.095b=303\\&#10;----------\\&#10;0.07a+0.095\left(\boxed{a+150}  \right)=303&#10;\end{cases}&#10;\\\\\\&#10;0.07a+0.095a+14.25=303\implies 0.165a=288.75&#10;\\\\\\&#10;a=\cfrac{288.75}{0.165}\implies a=1750

how much was it for the laptop?  well b = a + 150.
8 0
3 years ago
Solve each expression 2n^2+3n-2
Gnom [1K]
Simple, solve straight across, its either 4n or 2n
5 0
3 years ago
Read 2 more answers
Other questions:
  • Gas mileage is the number of miles you can drive on one gallon of gas. a test of a new car results in 450 miles on 10 gallons of
    7·1 answer
  • 678 rounded to the nearest hundred
    12·2 answers
  • John O'Sullivan has just completed his first year in business. His records show that he spent the following in advertising:
    8·2 answers
  • Miss you earned 3 times as many points as jerry. Kimmel earned 9 more points than jerry. Miss you earned 21 points. How many poi
    9·2 answers
  • Which pair of undefined terms is used to define the term parallel lines
    15·2 answers
  • Create a function rule for the
    10·1 answer
  • Solve the following equation 2x=15-1x
    15·2 answers
  • Question 9 and 10 please help it’s due today and I will mark you brainless
    6·1 answer
  • Which triangle is a translation
    8·1 answer
  • can someone please help me?!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!