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
d1i1m1o1n [39]
3 years ago
15

What is the y-value in the solution to this system of linear equations?

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

Answer: The answer is y = -4

Karolina [17]3 years ago
6 0

Answer:

y = -4

Step-by-step explanation:

Solve the following system:

{4 x + 5 y = -12 | (equation 1)

3 y - 2 x = -16 | (equation 2)

Add 1/2 × (equation 1) to equation 2:

{4 x + 5 y = -12 | (equation 1)

0 x+(11 y)/2 = -22 | (equation 2)

Multiply equation 2 by 2/11:

{4 x + 5 y = -12 | (equation 1)

0 x+y = -4 | (equation 2)

Subtract 5 × (equation 2) from equation 1:

{4 x+0 y = 8 | (equation 1)

0 x+y = -4 | (equation 2)

Divide equation 1 by 4:

{x+0 y = 2 | (equation 1)

0 x+y = -4 | (equation 2)

Collect results:

Answer:  {x = 2 , y = -4

You might be interested in
Sandra is 4 feet tall.Pablo is 10% talker than Sandra,and Michaela is 8% taller than Pablo.Explain how to Michaelas height with
Pavlova-9 [17]

Answer:

For Pablo's height, just make 10% of 4 a decimal which is .4 and add 4 to it. and then for Michaela do the same which is .8 and add 4 to it  so 5ft for Michaela

5 0
3 years ago
Find the probability that a point chosen at random in the figure will be shaded region. Write your answer as a percentage roundi
Marrrta [24]
Need an image to complete this question
3 0
2 years ago
3x+5y=-3 x-5y=-5 show your work
frez [133]
We are given the equations 3x+5y=-3 and x-5y=-5.

Both equations have a 5y  term which allows us to easily solve the system by elimination. To do so we will add the equations together like a simple addition problem by adding the x terms together, the y terms together, and the integer answers together.

3x + 5y = -3
+x - 5y = -5
---------------
4x + 0y = -8

The y terms cancel out since one is positive and one is negative. Now we can solve for x.

4x = -8

\frac{4x}{(4)} = \frac{-8}{(4)}

x = -2

Now plug -2 in for x in one of the original equations to find y.

(-2) - 5y = -5

-5y = -3

y = 3/5

Our answer as an ordered pair is (2, 3/5)
6 0
2 years ago
A sixth's grader class had 12 boys and 24 girls. Write two more statements comparing the number of boys in class to the number o
ahrayia [7]
The ratio of boys to girls is
12:24
(which is already one statement)
the ratio, simplified, is
1:2
(ratio are like fractions, which is how I was able to "simplify" it)
7 0
3 years ago
Read 2 more answers
Which statement about the quadratic equation below is true? x2 + 4x + 1 = 0.
scZoUnD [109]

Answer: i think it’s no real solutions

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • There are 52 white keys and 36 black keys on a standard piano. What is the probability that if a person did not look and hit the
    7·1 answer
  • I need help 50 points
    10·2 answers
  • Easy 6th-grade math question
    13·2 answers
  • Sandy has 8 markers. Alex has 6 fewer markers than sandy. Jill has 2 markers. How many markers do they have in all? Show your wo
    8·2 answers
  • Given two angles that measure 50° and 80° and a side that measures 4 feet, how many
    6·1 answer
  • PLEASE HELP ASAP!!!!!!
    8·2 answers
  • Which of the following is the most likely end for a star that formed from an extremely large nebula? (2 points)
    15·2 answers
  • Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B242%7D%7B2%7D%20%7D%20" id
    8·2 answers
  • 100,85,70,_,40<br><br><br> What is the number pattern?
    12·2 answers
  • There are 550 calories in 100 g of bacon. There are 196 calories in a fried egg. Philip has 60 g of bacon and two fried eggs for
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!