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
GREYUIT [131]
3 years ago
7

System of equations

Mathematics
1 answer:
nalin [4]3 years ago
4 0

Answer:

The solution of the system of equations is the point (-3,0)

Step-by-step explanation:

we have

-3x+y=9 -----> equation A

2x-y=-6 -----> equation B

Adds equation A and equation B

-3x+y=9\\2x-y=-6\\------\\-3x+2x=9-6\\-x=3\\x=-3

Find the value of y

-3(-3)+y=9

9+y=9

y=9-9=0

The solution of the system of equations is the point (-3,0)

You might be interested in
The sign of the product of two integers with the same sign is positive. What is the sign of three integers with the same sign? E
Svetradugi [14.3K]
Can be both, because if all three were negative, it would be

negative*negative= positive
positive*negative=negative
example: -1*-1*-1=-1

but if all three were positive, it would obviously be positive, because any number of positives can't make negatives in multiplication.
4 0
3 years ago
Solve the inequality -2x+10<=24
lana66690 [7]

Answer:x

x ≥  - 7

Step-by-step explanation:

5 0
3 years ago
A battery is charged. The percentage of the battery’s capacity that is charged as a function of time (in minutes) is graphed.
igor_vitrenko [27]

Answer:

  A- 12 percent

Step-by-step explanation:

You can see on the graph that the charged percentage of capacity changes from 40 to 50 in 5 minutes. Then the increase in 6 minutes will be slightly more than 10 percent.

The linear rate is (10%)/(5 min) = 2%/min, so in 6 minutes it will be

  (2%/min)×(6 min) = 12%

This calculation is consistent with our observation from the graph.

Every 6 minutes, 12 percent is added to the capacity.

3 0
3 years ago
If f(x)=3x^2-2x+4 and g(x)=5x^2+6x-8 find (f+g)(x)
djverab [1.8K]
(3x^2-2x+4)+(5x^2+6x-8) - Combine like terms
8x^2+4x-4
(f+g)(x)=8x^2+4x-4
5 0
3 years ago
Factor the expression given below. Write each factor as a polynomial in descending order 9x2-1
Alona [7]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • A party store uses 20% of a tank of helium a day and fills 80 balloons. Each balloon takes 0.5 cubic feet of helium to fill. How
    7·2 answers
  • Please help it’s due
    5·2 answers
  • Helpppppp :((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((9999
    8·1 answer
  • Help if you get it right I will give you Brainliest
    10·1 answer
  • Please help asap I rly need help​
    7·1 answer
  • There are 3 students to 1 adult on a field trip. You need to find the number of adults needed for 24 students. What would the se
    5·2 answers
  • Delta makes 12-volt car batteries. These batteries are known to be normally
    7·1 answer
  • John is buying food for his cat, Fluffy. Fluffy LOVES a fancy wet food which costs $1.50 per day. Fluffy will also tolerate dry
    7·1 answer
  • Write an equivalent expression for -6(a+8)
    7·1 answer
  • Please answer this question thank you
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!