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
OLEGan [10]
2 years ago
11

What is the solution to this system of equations?

Mathematics
2 answers:
vovangra [49]2 years ago
7 0

3x + 2y=-10 equation 1

y=-x -4 equation 2

use the substitution method of elimination to get the answer to the question.

*using substitution

substitute equation 2 in one and we get

3x +2(-x-4)=-10

3x- 2x-8=-10

x=-2 and y=-2

Answer:

B

Anvisha [2.4K]2 years ago
3 0

Answer:  Choice A

(-2, -2)

=============================================================

Explanation:

I'll use the substitution method to solve this system.

Replace y in the first equation with -x-4. This is because y = -x-4 is mentioned in the second equation.

So,

3x + 2y = -10

3x + 2( y ) = -10

3x + 2( -x-4 ) = -10 .... substitution

3x - 2x - 8 = -10

x - 8 = -10

x = -10+8

x = -2

Then use this to find y

y = -x-4

y = -(x) - 4

y = -(-2) - 4

y = 2 - 4

y = -2

We have x = -2 and y = -2 pair up together

They form the ordered pair solution (x, y) = (-2, -2)

This shows why Choice A is the answer.

Another way to see this is to graph each equation given using a tool like Desmos. It's a free graphing app.

See below.

The two lines intersect at (-2, -2) which is the solution.

You might be interested in
Please help! Will give 20 Brainly points!
pshichka [43]

Answer:

Part A: 3:2 or 3 to 2

Part B: 18 + 12 = 30

5 0
2 years ago
Read 2 more answers
6,500 cL = how many L
TiliK225 [7]
There are 65 Liters in 6500 centiliters.

1 cl = 0.01 L, so 0.01 x 6500 = 65
5 0
3 years ago
Read 2 more answers
Suppose you are planning a ward party. Last year, there was a similar activity and 150 people attended. If the ward has grown by
Marrrta [24]

Answer:

164 people

Step-by-step explanation:

100% represents the 150 people who attended last year.

this year , there is an increase of 9% , which will make the total percentage to be 109%.

if ; 100% = 150 people

     109% = ?

cross multiply to get 163.5 the round off to get 164

8 0
3 years ago
Please help me I am currently struggling with this please help as soon as possible
Step2247 [10]
You strugglein on “8,9”?
4 0
2 years ago
NOTE: Angles not necessarily drawn to scale.
Anastasy [175]

The answer is 13!! :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • A state lottery randomly chooses 7 balls numbered from 1 through 45 without replacement. You choose 7 numbers and purchase a lot
    10·1 answer
  • zane bought a pair of jeans that originally cost $56. he used a coupon for 25% off and paid$8 in sales tax
    11·2 answers
  • Estimate the quotient of 719.711 ÷ 8.75.
    11·2 answers
  • Find two consecutive integers whose sum is 113​
    12·2 answers
  • the measures of two of the angles in a triangle are 126.7 and 19 degrees find the measures of the third angle
    8·1 answer
  • On a standardized test, Rasi answered the fast: 22 questions in 5 minutes. There are 7]
    8·1 answer
  • Please help its due today!! yes
    15·1 answer
  • If the ratio football players two basketball players at your school is 7:5 then how many basketball players are there if they ar
    6·1 answer
  • Allen and Ben both open new bank accounts with an initial
    14·1 answer
  • Lukas is researching animals for a project. He has already researched 8 animals in school and continues to research 2 new animal
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!