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
svetoff [14.1K]
2 years ago
10

Substitution for -3x+y=-9

Mathematics
1 answer:
shtirl [24]2 years ago
4 0

Answer:

y=3x-9

Step-by-step explanation:


You might be interested in
Let the polynomials A = 7x² + 3xy and B = -3xy .
bija089 [108]

Answer:

– 21x^3 y – 9x^2 y^2 e) is your answer

Step-by-step explanation:

Solve the following system for A and B:

{A = 7 x^2 + 3 x y

B = -3 x y

Express the system in matrix form:

(1 | 0

0 | 1)(A

B) = (7 x^2 + 3 x y

-3 x y)

Write the system in augmented matrix form and use Gaussian elimination:

(1 | 0 | 7 x^2 + 3 x y

0 | 1 | -3 x y)

Collect results:

Answer: {A = 7 x^2 + 3 x y  , B = -3 x y

then we multiply the results (7 x^2 + 3 x y) ( -3 x y) =  – 21x^3 y – 9x^2 y^2

7 0
3 years ago
Write the algebraic expression representing the length and width of Marliens house. Someone please tell me the process of how to
Katarina [22]
This is telling you to find out the dimensions of her house.
I suggest using mathpapa for each equation. It will show you how to solve it and then the answer. 
So for the top dimensions, put the following into mathpapa: (2x-10)+(x-2)+(.5x-4)+(x-2)
3 0
3 years ago
Read 2 more answers
There are 32 girls and 17 boys what percent of the class are girls
gulaghasi [49]
Given that there are 32 girls and 17 boys, the total number of students in the class is 49. In order for us to know the percent of the girls in class, what we are going to do is to simply divide 32 by 49 and then multiply by 100 and the answer is 65.3%. Hope this answers your question.
8 0
3 years ago
Given a quadratic function, y=x2+bx+c what happens to the graph when "a" is positive? A.the parabola opens down, the vertex is t
Llana [10]

Answer:

D

Step-by-step explanation:

The parabola opens up. Which means the vertex is the minimum value.

6 0
3 years ago
Carpeting costs $9.99 a yard. Jan wants to buy 17.4 yards. How much will it cost her?
dusya [7]

Answer:

173.83

Step-by-step explanation:

17.4 * 9.99

173.826 ~ 173.83

4 0
3 years ago
Read 2 more answers
Other questions:
  • F(x)=(x – 5)(x+3)(x-1)<br> Degree?
    12·1 answer
  • Nicolas sold 20 1/2 pounds of shrimp in 4 hours. At this rate, how many pounds of shrimp did he sell i 1 hour? How many pounds o
    10·1 answer
  • Evaluate the infinite sum
    12·2 answers
  • Maya sells candles to her 5 neighbors. Each neighbor buys 2 boxes of candles. There are 6 candles in each box. What is the total
    15·1 answer
  • Plzz need answer ASAP​
    9·1 answer
  • (<img src="https://tex.z-dn.net/?f=%20%28%5Cfrac%7B2%7D%7B3%7D%20x%5E%7B-3%7D%20y%5E%7B4%7D%20z%5E%7B2%7D%29%5E%7B3%7D%20%20%20"
    11·1 answer
  • Kim is reading a book with 380 pages. she read 20 pages each day until she reached part 2 of the book. part 2 of the book is 160
    12·1 answer
  • Please answer the question
    7·1 answer
  • Please someone help???ty!!
    12·1 answer
  • The average length of a baby at birth is 19 inches long. There are 2.54 centimeters in 1 inch. What is the average length of a b
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!