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
Nata [24]
3 years ago
10

Use linear combination method to solve this systemof equations. What is the value of x?

Mathematics
1 answer:
lys-0071 [83]3 years ago
7 0

Using the linear combination method, we can add 3x+7y=31 and -3x-2y=-1 together, which makes 5y=30.


Just divide both sides by 5, and your answer will be y = 6.



To solve for x, just substitute 6 in y in either equation and solve for x:


-3x-2(6)=-1\\ -3x-12=-1\\ -3x=11\\ x=-\frac{11}{3} =-3\frac{2}{3}



In short, the correct answer is B. -3 2/3

You might be interested in
6 in 7 21 in 14 in 8 in​
yulyashka [42]
I think this is find the LCM, so the answer would be 168
8 0
3 years ago
What are the next two terms after 1/8,2/7,3/6,4/5,...? And inductive reasoning for it
nydimaria [60]

5/3 and 6/2 because the pattern shows that it adds one to the numerator while it deducts one from the denominator.

5 0
3 years ago
Solve the following by completing the square.
sertanlavr [38]

I think it might be D. I'm just giving an educated guess.

6 0
2 years ago
Find the area (shaded) and round to the tenths place if necessary.
fomenos

Answer:

9π - 9

Step-by-step explanation:

Depends on what the question stated was pi (π). The area of the circle is 9(3 squared) * π. the shaded area is the area of the circle - the area of the triangle. The area of the triangle is base * high / 2. If the diameter of the circle (6) is what we use as the base, then 3 would be the high, making the area 9. This means the shaded area would be 9π - 9.

6 0
3 years ago
PLEASE ANSWER THIS MATH QUESTION !! THANK U !! 19 POINTS AND BRAINLIEST !!
Karolina [17]

Answer:

a

Step-by-step explanation:

the side x looks smaller than 8 m.

The only option smaller than 8 m is a, 5.2 m

3 0
3 years ago
Other questions:
  • Carol's starting pay for her summer job is $10.25 per hour. Carol earns exactly 3 raises this summer.
    6·1 answer
  • (b) About how many times larger was the population of the United States than the population of Columbus, Ohio? Show your work! N
    5·1 answer
  • Could somebody please help me understand this?!?!?<br> (y+1)=3/5(x-3)
    10·2 answers
  • What is 2/3y + y? ( do not try to figure out "y" just what's the number
    6·2 answers
  • PLZ HELP! 10 points
    8·1 answer
  • Solve by using related function 1/2x^2 -2=0
    8·1 answer
  • Use Inverse operations to solve the expression. Enter your answer in simplest form. y 1 =8 16​
    15·1 answer
  • I need help asap
    7·1 answer
  • The vegetable garden has 95 ripe plants. The number of tomatoes is 16 fewer than twice the number of squashes. How many of each
    12·1 answer
  • PLZ ANSWER ASAP
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!