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
astra-53 [7]
2 years ago
14

Halla el conjunto solución del siguiente sistema de ecuaciones aplicando el método de reducción: 2x + 3y = 8 x – 5y = 6

Mathematics
1 answer:
AysviL [449]2 years ago
4 0

Answer:

x = 7.535 and y = 0.307

Step-by-step explanation:

Given that,

Two equations,

2x + 3y = 8 ...(1)

x – 5y = 6....(2)

Multiply equation (2) by -2.

-2x + 10y = -12....(3)

Now, adding equations (1) and (2),

2x + 3y -2x + 10y = 8-12

13y = 4

y = 0.307

Put the value of y in equation (2).

x – 5(0.307) = 6

x = 6 + 1.535

x = 7.535

So, the solutions of the given equation are x = 7.535 and y = 0.307.

You might be interested in
Find the product:<br> (x+9)(x-9)<br> a 18<br> b. -81<br> C. - 18<br> d. x-64
Lilit [14]

Answer:

x^2 -81

Step-by-step explanation:

(x+9)(x-9)

FOIL

first x*x = x^2

outer -9x

inner 9x

last -9*9 = -81

Add them together

x^2 -9x+9x -81

Combine like terms

x^2 -81

5 0
3 years ago
Read 2 more answers
Cos(sin^-1(24/26)<br> Use a sketch to find the exact value of the following expression
creativ13 [48]
Hello,

Let y=sin^(-1)(12/13.
==>sin y=12/13
==>cos y=√(1-(12/13)²)=√(25/169)=5/13

Answer 5/13

4 0
3 years ago
James is visiting a state with a 5% sales tax rate. He bought a travel guide that cost $22. What is the total cost of the travel
Tom [10]
$22x5% = $1.10 or 22x.05= 1.1
$22.00 + $1.10 = $23.10
7 0
3 years ago
What is -7/2y = 21/2 what is the solution_______? Brainliest is on the mark if 10 point will be added as well!
miss Akunina [59]

Answer:

y= -3

Step-by-step explanation:

(-7/2)y  =21/2

Divide both sides by (-7/2) = Multiply by (-2/7)

On the left side ,after cancellation you have only  y

On the right side you multiply 21/2 by (-2/7)

y= (21*-2) / 2*7

y=(-42)/14

y=(-21)/7

y=- 3    

check:

-(7/2) of- 3 is  10.5         21/2=10.5

7 0
3 years ago
What is the y-value in the solution to this system of linear equations?
baherus [9]

Answer:

Option  A.)−4

Step-by-step explanation:

we have

4x+5y=-12 -----> equation A

-2x+3y=-16 -----> equation B

Solve the system of equations by elimination

Multiply the equation B by 2

2*(-2x+3y)=-16*2

-4x+6y=-32 -----> equation C

Adds equation A and equation C

4x+5y=-12

-4x+6y=-32

-----------------

5y+6y=-12-32

11y=-44

y=-4

4 0
3 years ago
Read 2 more answers
Other questions:
  • Someone help me please? giving away 35 points and brainliest (only if right)
    13·1 answer
  • How can we tell the difference between a common multiple problem and a common factor problem?
    5·1 answer
  • The points P(2,3) , Q(-1,1) and R(5,-1) are the vertices of a triangle PQR.Find the equation of the altitude of the triangle PQR
    9·1 answer
  • Which fraction has a value greater than 0.4
    10·2 answers
  • Your school's football team scored 49 points. Your team's score was 19 points more than the opponent's score s. Write and solve
    12·1 answer
  • Round 132,654 to the nearest ten thousand
    15·1 answer
  • The next number in series 7,9,13,29 is:​
    13·1 answer
  • (xy)^2 &lt;----this is the promblem......<br><br> WHAT IS THIS IN WORD FORM?
    10·1 answer
  • If p-1/p = 4 Find (p+1/p)²​
    7·1 answer
  • I will give the BRAINIEST
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!