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
defon
3 years ago
14

Y=x+2 3x+3y=6 solving systems by substitution

Mathematics
1 answer:
motikmotik3 years ago
6 0

Answer:6

Step-by-step explanation:Reorder

2

2

and

−

x

-

x

.

y

=

−

x

+

2

y

=

-

x

+

2

3

x

+

3

y

=

6

3

x

+

3

y

=

6

Replace all occurrences of

y

y

in

3

x

+

3

y

=

6

3

x

+

3

y

=

6

with

−

x

+

2

-

x

+

2

.

y

=

−

x

+

2

y

=

-

x

+

2

3

x

+

3

(

−

x

+

2

)

=

6

3

x

+

3

(

-

x

+

2

)

=

6

Simplify

3

x

+

3

(

−

x

+

2

)

3

x

+

3

(

-

x

+

2

)

.

Tap for more steps...

y

=

−

x

+

2

y

=

-

x

+

2

6

=

6

6

=

6

Since

6

=

6

6

=

6

, the equation will always be true.

y

=

−

x

+

2

y

=

-

x

+

2

Always true

Remove any equations from the system that are always true.

y

=

−

x

+

2

You might be interested in
What property describes the number sentence 6+0=6
VashaNatasha [74]
Identification I believe sorry if wrong
8 0
3 years ago
Read 2 more answers
Please please help<br><br> ‼️WILL MARK BRAINLIEST‼️<br><br> 10 Points
asambeis [7]
B is the right answer.
4 0
3 years ago
Please help!!!!!!!!!!
Delicious77 [7]

f(x)=2x^2-4x+1

Substitute the values of x to the equation of the function f:

x=-1\to f(-1)=2(-1)^2-4(-1)+1=2(1)+4+1=7\\\\x=2\to f(2)=2(2^2)-4(2)+1=2(4)-8+1=1

Therefore we have two points (-1, 7) and (2, 1).

We can calculate the slope of line l.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute:

m=\dfrac{1-7}{2-(-1)}=\dfrac{-6}{3}=-2

<h3>Answer: A) -2.</h3>
5 0
3 years ago
The numerical value of the quantities expressed by the numbers and letters on the left side of the equation (equal sign) is equa
pashok25 [27]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

In the question, the choices are missing that why it correct can be defined as follows:

The correct choice is "What else the equivalent (=) sign indicates on both sides of every equation".

6 0
3 years ago
Suppose you invest $100 a month in an annuity that
Dominik [7]

Answer:

  $2502.60

Step-by-step explanation:

The formula for the amount of an annuity due is ...

  A = P(1 +r/n)((1 +r/n)^(nt) -1)/(r/n)

where P is the monthly payment (100), r is the annual interest rate (.04), n is the number of compoundings per year (12), and t is the number of years (2). Given these numbers, the formula evaluates to ...

  A = $100(1.00333333)(1.00333333^24 -1)/0.00333333

  = $100(301)(0.08314296)

  = $2502.60

_____

This value is confirmed by a financial calculator. The given answer choices all appear to be incorrect. The closest one corresponds to an annual interest rate (APR) of 4.286%, not 4%.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x.<br><br> 80<br> 42<br> 60<br> 30
    9·1 answer
  • The ratio of girls to boys in Liza’s classroom is 5 to 4 how many girls are in her classroom if there is a total of 27 students
    13·2 answers
  • Which mixed number is equal to 6.5?
    11·1 answer
  • The following data show the distances (in miles) from the homes of off-campus statistics students to the college. Create a stem
    7·1 answer
  • 1 mile divided by 2 laps =
    6·1 answer
  • Phillip and Ryan are saving money for college. Phillip started with $500 in his savings account and saves $25 a week. Ryan start
    10·2 answers
  • A group of 25 people are going to run a race. The top 8 finishers advance to the finals.
    13·1 answer
  • What is the solution to this system of equations? Show your work. 46 points
    15·2 answers
  • Bailey got a 75% on a quiz. They got 15 questions
    8·1 answer
  • HELLPP HURRRY FIND THE AREA
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!