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
kow [346]
2 years ago
6

Solve the system of equations using the Addition method. 2a + 3b = -1 3a + 5b = -2

Mathematics
1 answer:
nasty-shy [4]2 years ago
8 0
2a + 3b = -1
3a + 5b = -2

3(2a + 3b = -1)    -->    6a + 9b = -3
2(3a + 5b = -2)    -->    6a + 10b = -4
                                 -  ___________
                                               b = -1

2a + 3(-1) = -1
2a - 3 = -1
2a = 2
a = 1

2(1) + 3(-1) = -1    -->    2 - 3 = -1
3(1) + 5(-1) = -2    -->    3 - 5 = 2

Answer:
a = 1
b = -1

Hope this helps.
You might be interested in
Which of the following expressions is equal to 3x2 + 27 ?
djverab [1.8K]

Step-by-step explanation:

The answer is provided in the options. The answer should have been A, if the question was 3x²-27.

6 0
2 years ago
My question is in the picture please help. First answer gets brainliest​
Mandarinka [93]
Round 1 player 1 because 12 is the greatest number
5 0
2 years ago
The point slope form of an equation of the line that passes through (-4, -3) and (12, 1) is y -1 =1/4(x-12). What is the standar
luda_lava [24]

The standard form: Ax + By = C.

We have:

y-1=\dfrac{1}{4}(x-12)\qquad|\text{multiply both sides by 4}\\\\4y-4=x-12\qquad|\text{add 12 to both sides}\\\\4y+8=x\qquad|\text{subtract 4y from both sides}\\\\8=x-4y

<h3>Answer: x - 4y = 8</h3>
6 0
3 years ago
Round 8,503 to nearest thousand
Jlenok [28]

Answer:

9,000

Step-by-step explanation:

If x < 5, we round down.

If x ≥ 5, we round up.

Since 8,503, 500 is ≥ 5, we round up to 9. So,

8,503 ≈ 9,000

4 0
2 years ago
Read 2 more answers
Sienna planned a rectangular pool, as shown in the scale drawing below. 11 in. 7 in. Sienna used the scale drawing above to crea
Andreas93 [3]

Given that Sienna planned a rectangular pool drawn on a scale 11 inches long by 7 inches wide, and Sienna used the scale drawing above to create a pool that is 14 ft wide x 22 ft long, and she then decided to make a pool with a final length of 33 ft, to determine which expression finds the change in scale factor for the longer pool Sierra is building the following calculation must be performed:

  • 11 inches = 0.916 feet
  • 11 / 0.916 = 12
  • 7 inches = 0.583333 feet
  • 7 / 0.5833333 = 12
  • Thus, the initial scale is 1:12.
  • 33 / 0.916 = 36

Therefore, the scale factor went from 1:12 to 1:36.

Learn more in brainly.com/question/2302757

4 0
2 years ago
Read 2 more answers
Other questions:
  • 0.5(3 repeating) as a fraction
    9·1 answer
  • You have four bills that need to be paid this week . Electric 182.17, water bill 92.55, the cell phone bill 225.82 and the cable
    15·1 answer
  • I need help now. wich two
    6·1 answer
  • How much money should be deposited today in an account that earns 7% compounded semiannually so that it will accumulate to $12,0
    5·1 answer
  • In a study to support drug discovery for patients with lung cancer, patients were divided into 3 groups based on the severity of
    5·1 answer
  • Shannon rolls two number cubes, each numbered one through six. She observes the numbers facing up on each number cube and finds
    15·2 answers
  • . What is the volume of the cylinder below? 1 PS 10 in. 30 in. ​
    13·1 answer
  • Answer for brainlest and 10 points
    8·2 answers
  • 11. Madison wants to know which sports are most popular.
    13·2 answers
  • Find the domain of f(x) = 3x for the range {-7, -1, 3, 11}.<br> =
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!