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
PSYCHO15rus [73]
3 years ago
10

Use the substitution method to solve the system of equations. Choose the correct ordered pair.3x + y = 10y = x – 2

Mathematics
2 answers:
icang [17]3 years ago
8 0

Answer: B. (3,1)

Step-by-step explanation:

The given system of linear equations :-

3x + y = 10......................(1)\\\\y = x - 2..................(2)

Substitute the value of y from equation (2) in equation (1), we get

3x + (x-2) = 10\\\\\Rightarrow\ 4x-2=10\\\\\Rightarrow\ 4x=12\\\\\Rightarrow\ x=3

Now, substitute the value of x in equation (2), we get

y=3-2=1

Hence, the solution of the given system of equation = (3,1)

almond37 [142]3 years ago
4 0
B. For the easiest way to find this, solve the first equation for y and then plug into the second equation for y. 
You might be interested in
Find the value of x.
svetoff [14.1K]

Answer:

68

Step-by-step explanation:

1) Find the interior angle using relations of angles in straight line I.e ( sum of angles in a straight line is 180 ) and we know the sum of all the interior angle of quadrilateral is 360 degree .

2) Solve further for x.

5 0
2 years ago
F(x) = x2 + 1<br> g(x) = 5-x<br> (f+g)(x) =<br> O x2 + x-4<br> x²+x+4<br> O x2-x+6<br> O x2 + x + 6
charle [14.2K]

Answer:

\boxed{(f + g)(x) = {x}^{2} - x + 6}

Given:

f(x) =  {x}^{2}  + 1 \\  \\ g(x) = 5 - x

To Find:

(f + g)(x) = f(x) + g(x)

Step-by-step explanation:

=  > f(x) + g(x) =  ({x}^{2}  + 1) + (5 - x) \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = {x}^{2}  + 1 + 5 - x\\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = {x}^{2}  + 6 - x\\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = {x}^{2} - x + 6

5 0
3 years ago
10. If possible, determine whether or not triangles LQP and LMN
natita [175]

Answer:

They are similar

Step-by-step explanation:

If two triangles are similar, the ratio of their corresponding side lengths must be equal to each other.

This means that for ∆LQP and ∆LMN to be considered similar to each other, therefore:

LM/LQ = LN/LP

LM = 100

LQ = 12

LN = 75

LP = 9

LM/LQ = 100/12 = 25/3

LN/LP = 75/9 = 25/3

LM/LQ = LN/LP = 25/3, therefore ∆LQP and ∆LMN are similar to each other because the ratio of their corresponding side lengths are the same.

3 0
2 years ago
In 2004​, 550,000 acres of farmland in a region were devoted to growing nuts. By 2011​, the number of acres used to grow nuts ha
Romashka-Z-Leto [24]

Answer:

41428.57

Step-by-step explanation:

Average rate of change=(y2-y1)/(x2-x1)

(840,000-550000)/(11-4)

=41428.57

3 0
3 years ago
Help picture below problem 11
Elden [556K]

Answer:

B) angle B

Step-by-step explanation:

Since the question is telling you that both the triangles are essentially the same, you just have to look to see which letter of triangle ABC is in the same general place as triangle DEF.

In this case angle B is in the same general spot as angle E, so therefore B is your answer.

Hope this helps you :)

6 0
2 years ago
Other questions:
  • Iodine-131, a radioactive substance that is effective in locating brain​ tumors, has a​ half-life of only eight days. a hospital
    12·1 answer
  • Solve 58 - 10x ≤ 20 + 9x
    8·2 answers
  • A politician running for a third term is planning to contact all contributors to her first two campaigns. If 1,576 individuals c
    10·1 answer
  • Match each condition to the number of quadrilaterals that can be constructed to fit the condition.​
    9·2 answers
  • Determine the number of solutions to the following system of equations. y=-3x^2-4x+7 and 3x+2y=18
    10·1 answer
  • Whoever gets this right first gets a BRAINLYEST
    6·1 answer
  • Im just be straight with y'all im clueless with this stuff :(
    8·1 answer
  • PLS HELP!
    5·1 answer
  • David hikes 60 miles in 3 days. At that rate, how many days does it take him to hike a total of 240 miles?
    7·2 answers
  • Convert 6.2x10^5 mm to km. (please show the steps to how you did the problem.)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!