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
myrzilka [38]
3 years ago
10

Solve the system by elimination 3x-2y=2 5x-5y=10

Mathematics
2 answers:
Fudgin [204]3 years ago
4 0

Answer:

(-2,-4)

Step-by-step explanation:

3x-2y=2

5x-5y=10

--

Multiply 3x-2y=2 by -5 to turn it into -15x+10y=-10

Mutiplu 5x-5y=10 by 2 to turn it into 10x-10y=20

--

Eliminate y

-15x+10y=-10

10x-10y=20

= -5x=10

Divide by -5

x=-2

--

Plug -2 to the first equation

3(-2)-2y=2

-6-2y=2

Move -6 to the other side by adding 6 to both sides

-2y=8

Divide by -2

y=-4

(x,y) = (-2,-4)

NISA [10]3 years ago
3 0

(-2,-4)

x=-2, y= -4

Have a good day

You might be interested in
I need how you found the answers?
lara31 [8.8K]

Answer:

2x + 6 = -18

x + 1 = -11

3x = -36

Step-by-step explanation:

First find the solution! Then you can create your own equations

2x+9=-15

2x=-24

x=-12

Thus u need solutions with:

x = -12

Knowing the equation of a line as:

y = mx + b

we can can start by making y = -12 (our solution)

mx + b = -12

Now we can pick a value for m and b by adding and miltiplying on both sides

We do this to keep both sides equal.

if we make m = 2 and b = 3:

2x + mb = -12*m + 2b

2x + 6 = -24 + 6

2x + 6 = -18

Solving this we also get x = -12, as we expect.

An alternative way to think about it is to imagine that we start with a simple equation and make it more complex. We have our solution:

x = -12  => lets add a b value!

x + b = -12 + b => Lets add a slope (m)

xm + bm = -12m + bm

Giving values for this can give you multiple equation of the same solution.

General Formula:

m(x+b) = m(y+b)

mx + bm = my + bm

8 0
3 years ago
What type of triangle is shown in the figure
nasty-shy [4]
Scalene triangles have 3 sides of different lengths
Isosceles triangles have 2 sides of the same length
Equilateral triangles have 3 sides of the same length

This triangles has a tick mark on 2 sides, meaning that 2 sides are the same length, making this an isosceles triangle
6 0
3 years ago
Which of the following functions are one-to-one? Select all that apply.
Katyanochek1 [597]
1,2 and 5 is the answers I think
7 0
3 years ago
Read 2 more answers
Write the explicit rule of the arithmetic sequence that has a first term of 3 and a fourth term of 18
mr Goodwill [35]

Answer:

a_{n} = 5n - 2

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₄ = 18 , then

a₁ + 3d = 18 , that is

3 + 3d = 18 ( subtract 3 from both sides )

3d = 15 (divide both sides by 3 )

d = 5

Then

a_{n} = 3 + 5(n - 1) = 3 + 5n - 5 = 5n - 2 ← explicit rule

5 0
3 years ago
Doreen lives 3/5 mile from the library. Sheila lives 1/3 as far away from the library as Doreen. How far does Sheila live from t
tankabanditka [31]

Answer:

She lives 1/5 miles away from the library

Step-by-step explanation:

Here, we want to get the distance that Sheila

lives from the library

From the question, we are told she lives 1/3 as far as Doreen

So what we have to do in this case is to simply multiply the distances

we have this as:

1/3 * 3/5 = 1/5

6 0
4 years ago
Other questions:
  • PLEASE HELP ME, im offering 20 points!
    15·1 answer
  • Slope = -2/5; y-intercept = -3
    13·2 answers
  • Subtract. Your answer should be a polynomial in standard form. (-7d2 – 5d f3 – 3f3) - (8d+ 4d f3 +253)​
    6·1 answer
  • Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) have a completely filled outer electron shell and a
    15·2 answers
  • Please help i have class soon :(
    13·2 answers
  • The equation shown has an unknown number.<br> Enter a number that makes the equation true
    6·2 answers
  • The table below represents Bree’s trip from her home to the library and back on her way to the library she travels at 6 mph on h
    9·2 answers
  • Please give me the answers to this ASAP.
    9·2 answers
  • The scale shows both percentages and decimals.
    7·2 answers
  • Solve each question for the variable.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!