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
Zielflug [23.3K]
3 years ago
5

3x + y=11 -2x + y=1 Solve using substitution method

Mathematics
2 answers:
Alja [10]3 years ago
8 0

Step-by-step explanation:

here's the solution : -

=》3x + y = 11

=》y = 11 - 3x

now, plugging the value of y in equation 2

=》-2x + y = 1

=》-2x + 11 - 3x = 1

=》-5x = -10

=》x = 2

now, plugging the value of x as 2 in equation 1

=》3x + y = 11

=》6 + y = 11

=》y = 11 - 6

=》y = 5

nata0808 [166]3 years ago
6 0

Answer:

3x+yl=11

-2x+y=11

y=11-3x

-2x+11-3x=11

-5x=11-11

so x=0

y=11-0

y=11

You might be interested in
Subtract the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending pow
Vadim26 [7]
Hi! :)

12 a^2 + 60 a - 8
- (16 a^2 - 32 a + 9)

= -4 a^2 + 92 a - 17
3 0
3 years ago
YO HELLO I NEED HELP WITH THIS
Tasya [4]
Answer- I don’t know sorry
7 0
3 years ago
What is the solution for the systems of equations
AlekseyPX
x=1, y=2

Solve the following system:
{y = 5 - 3 x5 x - 4 y = -3
Substitute y = 5 - 3 x into the second equation:
{y = 5 - 3 x5 x - 4 (5 - 3 x) = -3

5 x - 4 (5 - 3 x) = (12 x - 20) + 5 x = 17 x - 20:{y = 5 - 3 x17 x - 20 = -3

In the second equation, look to solve for x:{y = 5 - 3 x17 x - 20 = -3

Add 20 to both sides:{y = 5 - 3 x17 x = 17

Divide both sides by 17:{y = 5 - 3 xx = 1

Substitute x = 1 into the first equation:{y = 2x = 1
Collect results in alphabetical order:Answer:  {x = 1                y = 2
5 0
3 years ago
D is the midpoint of CE. If CD= 2x+10 and DE =3x-18, find x and CE<br><br> x=<br> CE=
Veseljchak [2.6K]

Answer:

<h2>x = 28</h2><h2>CE = 132</h2><h2 />

Step-by-step explanation:

|<------------- CE -------------------->|

C-------------------D-------------------E

       2x + 10              3x - 18

2x + 10 = 3x - 18

2x - 3x = -18 - 10

-x = -28

x = 28

CE = 2x + 10 + 3x - 18

CE = 2(28) + 10 + 3(28) - 18

CE = 56 + 10 + 84 - 18

CE = 132

3 0
3 years ago
Approximately how long is a leg of an isosceles right triangle that has a hypotenuse of length 11.31
Lapatulllka [165]

Answer:

Leg of an isosceles right triangle is 7.99 long.

Step-by-step explanation:

Given:

Length of the hypotenuse =11.31

To find:

Length of the leg of an isosceles right triangle =?

Solution:

According to Pythagorean's Theorem, we have

a^2 +b^2 = c^2-----------------------------(1)

Here were are given as isosceles triangle, so the two sides will be of same length

So equation 1 can be rewritten as

a^2 +a^2 = c^2

2a^2 = c^2

Substituting the value of hypotenuse

2a^2 = (11.31)^2

2a^2 = 127.91

a^2 = \frac{127.91}{2}

a^2 =63.955

a = \sqrt{63.955}

a = 7.99

7 0
3 years ago
Other questions:
  • Simplify<br> -1/2 + 3-4x + 5 + 3/2x<br> Enter your answer in the box.
    8·2 answers
  • Question:
    7·1 answer
  • Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. The results in the screen disp
    11·1 answer
  • Round 30,944 to the nearest ten thousand
    11·1 answer
  • 2x + 7y = - 10<br> 2x + 2y = 20
    14·2 answers
  • A householder pays £384 for electricity in a year. She pays in twelve equal monthly installments. How much does she pays each mo
    7·2 answers
  • Find the length of BC. Round your answer to the nearest tenth.
    6·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Csqrt%7B6%7D%2B%5Csqrt%7B6%7D" id="TexFormula1" title="\sqrt{6}+\sqrt{6}" alt="\sqrt{6}+\sqr
    15·2 answers
  • Find the measure of angle AGE in the figure below. Enter only<br> the number.
    5·1 answer
  • *2. Formulate the number of daisies varied inversely as the number of sunflowers
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!