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
8_murik_8 [283]
3 years ago
15

Solve the system of equations 12x-5y=-20 y=x+4 x=_______ y=_______

Mathematics
1 answer:
pashok25 [27]3 years ago
3 0

Answer:

x = 0

y = 4

Step-by-step explanation:

Given

12x - 5y = -20

y = x + 4

Substitute x + 4 for y in the first equation

12x - 5(x + 4) = -20

Expand the bracket

12x -5 X x - 5 x 4 = -20

12x - 5x - 20 = -20

7x - 20 = -20

Add 20 to both sides to eliminate -20 on the left side

7x - 20 + 20 = -20 + 20

7x = 0

Divide both sides by 7 to isolate x

7x/7 = 0/7

x = 0

Substitute 0 for x in either equation to get y

Using equation 2, we have

y = x + 4

= 0 + 4

= 4

x = 0

y = 4

You might be interested in
PLEASE ANSWER, NEW! <br><br> If someone is 17 and someone is 13 how big is the age gap?
tatuchka [14]

Answer: 4

Step-by-step explanation:

8 0
3 years ago
Factorise: a^2 + 8a - 20
REY [17]
Which two numbers add up to <span>88</span><span> and multiply to </span><span>−20?
</span><span>−2</span><span> and </span><span>10
</span>
Rewrite the expression using the above:

Answer:
(a−2)(a+10)<span>
</span>
6 0
3 years ago
Read 2 more answers
pls help ASAP this is due in 10 min!!
Angelina_Jolie [31]
My thoughts and prayers for the family of us and the family who lives with the family in our family and we are in our lives and I hope that we can get a hold with him we can just go to the river with the kids in a few minutes and we will have a great time together
3 0
2 years ago
Which choice correctly describes this event? I will flip a coin and get heads 10 times in a row
BARSIC [14]

Answer:

B) Unlikely

Step-by-step explanation:

It is Unlikely that this will happen.

4 0
3 years ago
Read 2 more answers
Ella began doing her homework at a quarter five in the afternoon she finished her homework at 5:35 how long did it take Ella to
Alisiya [41]

Answer: 50 minutes

Step-by-step explanation: a quarter to 5 is always 15 minutes from 5, 4:45. So 5:35-4:45 is 50.

4 0
2 years ago
Other questions:
  • A vendor buys milk at a certain price, adds water and sells the adulterated milk at the same rate as he bought it for. He makes
    8·1 answer
  • Complete the equation of variation where y varies inversely as x and y = 80 when x = 0.7.
    12·2 answers
  • Tell whether the triangle with the given side lengths is a right triangle.<br> 12cm, 35cm, 37cm
    10·1 answer
  • HELP PICTURE IS SHOWN
    12·1 answer
  • Trig Please help
    6·1 answer
  • Which of the following is the vertical asymptote for the graph below?
    5·1 answer
  • Which of these is an example of typing at an average rate of 42 words per minute?
    10·2 answers
  • 5y − x =10 , solve the equation for y?
    10·2 answers
  • How can you tell if the sequence is arithmetic
    10·2 answers
  • Tina was observing the changing heights of a ball as it bounced over time. She graphed the function on this coordinate grid to s
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!