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
Lena [83]
2 years ago
10

Y=-2X 2X+7=12 What is the solution

Mathematics
2 answers:
Wewaii [24]2 years ago
5 0
X=2.5
Y=-5
You subtract 7 from 12 then divide the answer by 2 then you should get 2.5 you then put that in the place of x in the y=-2x equation to get the y=
Sindrei [870]2 years ago
4 0
2x + 7 = 12
Subtract 7
2x = 5
Divide by 2
X = 2.5

Y = -2x
Y = -2(2.5)
Y= -5
You might be interested in
When will n(A∩B)=0? Explain and give an example.
andrew11 [14]

Answer:

Two sets are called disjoint if they have no elements in common. For example:

The sets S = { 2, 4, 6, 8 } and T = { 1, 3, 5, 7 } are disjoint.

Another way to define disjoint sets is to say that their intersection is the empty set,

Two sets A and B are disjoint if A ∩ B = 0.

In the example above,

S ∩ T = ∅ because no number lies in both sets.

Step-by-step explanation:

8 0
3 years ago
A piano has 88 keys. Fifty-two of the keys are white.
Tcecarenko [31]

Answer:

36

Step-by-step explanation:

88 - 52

=36

8 0
2 years ago
The sum of two consecutive integers is 65. what are the two integers? show steps please.
Gnoma [55]

Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to find the two integers, given that they are consecutive, and their sum is 65.

\triangle~\fbox{\bf{KEY:}}

  • Consecutive integers are right next to each other, like 12 and 13. or 65 and 66.

Let the first integer be x, and let the second integer be x+1.

Their sum is 65. Let's set up our equation:

\longmapsto\sf{x+x+1=65}

Combine like terms:

\longmapsto\sf{2x+1=65}

Subtract 1 from both sides of the equal sign:

\longmapsto\sf{2x=64}

Divide both sides by 2:

\longmapsto\sf{x=32}

To find the second integer, subtract the first integer from the sum of the two integers:

\longmapsto\pmb{65-32}

\longmapsto\pmb{33}

The integers are: 33 and 32.

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

7 0
2 years ago
Select the correct answer.
shutvik [7]

Answer:

3

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Include work pleaseeeee
Angelina_Jolie [31]
Okay so to represent juice we are going to use X, and to represent water we are going to use Y.

We also know that the first two starting equations are:

6x + y = 135

4x + 2y = 110

We can re-arrange the first equation so that it equals y (for now), so it is going to end up looking like this:

y = -6x +135

Now you can take that equation and plug into either one of the starting two equations.  I chose the second equation.  We just substitute what y equals in for y in the equation, so we have:

4x + 2(135 - 6x) =  110

Now solve

4x + 270 -12x = 110

-8x + 270 = 110

Subtract 270 from both sides

-8x = -160

Now divide by -8 on both sides

x = 20

We can now confirm that juice costs $20

Now lets plug that into the equation where we solved for y, to get the actual value of y.

y = 135 - 6(20)

y = 135 - 120

y = 15

The price of water costs $15

From this we can conclude that the cost of juice is $20 and the price of water is $15

5 0
3 years ago
Other questions:
  • What is the interquartile range of 10,3,7,6,9,12,13
    6·1 answer
  • Pls help yall...im stuck on it
    9·2 answers
  • Initially a tank has 60 gallons of water. A brine solution with 1 pound of salt per gallon enters the (continuously stirred and
    8·1 answer
  • I need to understand proofs
    11·1 answer
  • Sorry im not smart. will give brainliest
    6·2 answers
  • What is the area of a 6x6x6 equilateral triangle?
    5·2 answers
  • 10 points
    13·1 answer
  • Perform the indicated operation (x-2)(x-11)<br>)<br>​
    5·2 answers
  • There are 37 carpenters in a crew. On a certain day, 27 were present. What percent showed up for work?
    8·1 answer
  • Please help for 20 points!! thank you if you help
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!