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
sasho [114]
3 years ago
5

How to get the answer for2x-12y=7,x=6y+9 substitution method

Mathematics
1 answer:
beks73 [17]3 years ago
7 0

Answer:

step 1. you see in the problem x = 6y + 9 substitue the equation for the x variable in the first equation. so it will be 2(6y+9) - 12y = 7

step 2. solve for y. butttt in this case it looks like it can't be solved .

Step-by-step explanation:

option 3. in the steps i provided  substituted x for x equals 6y + 9 which leads you to solve y. if you want you can rearrange 2x-12y=7 to solve for y so it would be  7-2x/-12 = 7

You might be interested in
What is thirty three and a third percent of 237?
Georgia [21]

Answer:

79

Step-by-step explanation:

(237)(1/3) = 79

6 0
3 years ago
If the measure of each exterior angle is twice as large as each interior angle, the polygon must be a regular
gavmur [86]

Answer:

y+o+u+t+u+b+e +biggie smalls

Step-by-step explanation:

4 0
2 years ago
The triangle T has vertices at (-2, 1), (2, 1) and (0,-1). (It might be an idea to
Firdavs [7]

Rewrite the boundary lines <em>y</em> = -1 - <em>x</em> and <em>y</em> = <em>x</em> - 1 as functions of <em>y </em>:

<em>y</em> = -1 - <em>x</em>  ==>  <em>x</em> = -1 - <em>y</em>

<em>y</em> = <em>x</em> - 1  ==>  <em>x</em> = 1 + <em>y</em>

So if we let <em>x</em> range between these two lines, we need to let <em>y</em> vary between the point where these lines intersect, and the line <em>y</em> = 1.

This means the area is given by the integral,

\displaystyle\iint_T\mathrm dA=\int_{-1}^1\int_{-1-y}^{1+y}\mathrm dx\,\mathrm dy

The integral with respect to <em>x</em> is trivial:

\displaystyle\int_{-1}^1\int_{-1-y}^{1+y}\mathrm dx\,\mathrm dy=\int_{-1}^1x\bigg|_{-1-y}^{1+y}\,\mathrm dy=\int_{-1}^1(1+y)-(-1-y)\,\mathrm dy=2\int_{-1}^1(1+y)\,\mathrm dy

For the remaining integral, integrate term-by-term to get

\displaystyle2\int_{-1}^1(1+y)\,\mathrm dy=2\left(y+\frac{y^2}2\right)\bigg|_{-1}^1=2\left(1+\frac12\right)-2\left(-1+\frac12\right)=\boxed{4}

Alternatively, the triangle can be said to have a base of length 4 (the distance from (-2, 1) to (2, 1)) and a height of length 2 (the distance from the line <em>y</em> = 1 and (0, -1)), so its area is 1/2*4*2 = 4.

6 0
3 years ago
What’s<br> -2x+y= -14 <br> 6x + 5y = -6
Katarina [22]
Hey, here's a pic of it ! hope this helps !

p.s., photomath is a good app for algebraic answers with work, you should check it out (:

3 0
3 years ago
!! WILL MARK BRAINLIEST PLZ HELP !!
Luba_88 [7]

Answer:

c

Step-by-step explanation:

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

5 0
2 years ago
Other questions:
  • What is half of the fraction 3/4
    10·1 answer
  • What is the answer to this question?
    6·1 answer
  • What mathematicians helped to discover alternatives to euclidean geometry in the nineteenth century
    10·1 answer
  • Solve proportion to x:
    12·1 answer
  • How to solve the linear system x-4y=10<br>2x+y=2 by graphing ​
    12·1 answer
  • How many terms are in 2+4x+7y
    13·1 answer
  • What’s the scientific notation of 0.70010
    14·1 answer
  • (x+4)(x+11)=0 <br> what do i do
    9·2 answers
  • What does 9740399 round to by the nearest hundred thousand?
    10·1 answer
  • Y-4=-5 (x+3) in point slope form
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!